Celestial Atlas
(IC 3350 - 3399) ←     IC Objects: IC 3400 - 3449 Link for sharing this page on Facebook     → (IC 3450 - 3499)
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3400, 3401, 3402, 3403, 3404, 3405, 3406, 3407, 3408, 3409, 3410, 3411, 3412, 3413, 3414, 3415, 3416,
3417, 3418, 3419, 3420, 3421, 3422, 3423, 3424, 3425, 3426, 3427, 3428, 3429, 3430, 3431, 3432, 3433,
3434, 3435, 3436, 3437, 3438, 3439, 3440, 3441, 3442, 3443, 3444, 3445, 3446, 3447, 3448, 3449

Page last updated Jun 22, 2013
WORKING: Add historical/physical data

IC 3400
Recorded (Feb 15, 1900) by
Arnold Schwassmann
A 12th-magnitude star in Virgo (RA 12 29 02.9, Dec +09 24 22)
Per Dreyer, IC 3400 (Schwassmann 108, 1860 RA 12 21 56, NPD 79 49.1) is "considerably bright, considerably small, = 10th magnitude star". The position precesses to RA 12 29 02.7, Dec +09 24 25, right on the star listed above, and there is nothing else nearby, so the identity is certain. Per Corwin, the identity was first noted by Adelaide Ames.
SDSS image of region near the star listed as IC 3400
Above, a 12 arcmin wide region centered on IC 3400

IC 3401 (= PGC 3089434)
Discovered (Mar 23, 1903) by
Max Wolf (4-150)
A 17th-magnitude spiral galaxy (type S?) in Coma Berenices (RA 12 28 58.8, Dec +26 27 38)
Apparent size 0.33 by 0.25 arcmin.
SDSS image of spiral galaxy IC 3401
Above, a 2.4 arcmin wide closeup of IC 3401
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near spiral galaxy IC 3401

IC 3402 (= PGC 41100)
Discovered (Mar 23, 1903) by
Max Wolf (4-151)
A 15th-magnitude spiral galaxy (type Sbc) in Coma Berenices (RA 12 28 59.3, Dec +28 51 45)
Apparent size 0.9 by 0.1 arcmin.
SDSS image of spiral galaxy IC 3402
Above, a 2.4 arcmin wide closeup of IC 3402
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near spiral galaxy IC 3402

IC 3403 (= PGC 41105)
Discovered (Mar 23, 1903) by
Max Wolf (4-152)
A 15th-magnitude spiral galaxy (type Sbc?) in Coma Berenices (RA 12 29 01.6, Dec +24 37 58)
Based on a recessional velocity of 14570 km/sec, a straightforward calculation indicates that IC 3403 is about 680 million light years away. However, for objects at such distances we should take into account the Universal expansion during the time it took their light to reach us. Doing that shows that the galaxy was about 640 million light years away at the time the light by which we see it was emitted, about 655 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of 0.42 by 0.35 arcmin, the galaxy is about 80 thousand light years across.
SDSS image of spiral galaxy IC 3403
Above, a 2.4 arcmin wide closeup of IC 3403
Below, a 12 arcmin wide region centered on the galaxy, also showing IC 3411
SDSS image of region near spiral galaxy IC 3403, also showing spiral galaxy IC 3411

IC 3404
Recorded (Nov 8, 1899) by
Arnold Schwassmann
A nonexistent object in Virgo (RA 12 29 10.5, Dec +07 09 13)
Per Dreyer, IC 3404 (Schwassmann 22, 1860 RA 12 22 03, NPD 82 04.3) is "considerably bright, considerably small, round, much brighter middle". The position precesses to RA 12 29 10.5, Dec +07 09 13 (whence the position above), but there is nothing there. Per Corwin, the "object" was probably a plate defect.
SDSS image of region near the position of the nonexistent IC 3404
Above, a 12 arcmin wide region centered on the position of the nonexistent IC 3400

IC 3405 (= PGC 2108047)
Discovered (Jun 11, 1896) by
Stephane Javelle (3-1224)
A 16th-magnitude spiral galaxy (type Sa?) in Canes Venatici (RA 12 28 59.5, Dec +37 43 50)
Apparent size 0.7 by 0.2 arcmin.
SDSS image of spiral galaxy IC 3405
Above, a 2.4 arcmin wide closeup of IC 3405
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near spiral galaxy IC 3405

IC 3406 (= PGC 41116)
Discovered (Mar 23, 1903) by
Max Wolf (4-153)
A 15th-magnitude spiral galaxy (type Sc?) in Coma Berenices (RA 12 29 02.8, Dec +27 38 26)
Apparent size 0.5 by 0.3 arcmin.
SDSS image of spiral galaxy IC 3406
Above, a 2.4 arcmin wide closeup of IC 3406
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near spiral galaxy IC 3406

IC 3407 (= PGC 41112)
Discovered (Mar 23, 1903) by
Max Wolf (4-154)
A 14th-magnitude spiral galaxy (type SABb pec?) in Coma Berenices (RA 12 29 03.9, Dec +27 46 42)
Apparent size 0.9 by 0.5 arcmin.
SDSS image of spiral galaxy IC 3407
Above, a 2.4 arcmin wide closeup of IC 3407
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near spiral galaxy IC 3407

IC 3408
Recorded (Sep 13, 1900) by
Arnold Schwassmann
An 11th-magnitude star in Virgo (RA 12 29 15.9, Dec +11 52 32)
Per Dreyer, IC 3408 (Schwassmann 194, 1860 RA 12 22 10, NPD 77 21.0) is "bright, stellar, possibly 9.5 magnitude star". The position precesses to RA 12 29 15.7, Dec +11 52 31, right on the star listed above, so the identification is certain.
SDSS image of region near the star listed as IC 3408
Above, a 12 arcmin wide region centered on IC 3408

IC 3409 (= PGC 41147)
Discovered (May 7, 1904) by
Royal Frost (923)
A 15th-magnitude spiral galaxy (type SB(rs)b?) in Coma Berenices (RA 12 29 21.1, Dec +14 47 18)
Apparent size 0.6 by 0.5 arcmin.
SDSS image of spiral galaxy IC 3409
Above, a 2.4 arcmin wide closeup of IC 3409
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near spiral galaxy IC 3409

IC 3410 (= PGC 41122)
Discovered (May 7, 1904) by
Royal Frost (922)
A 15th-magnitude lenticular galaxy (type S0?) in Coma Berenices (RA 12 29 06.1, Dec +19 00 18)
Apparent size 0.5 by 0.5 arcmin.
SDSS image of lenticular galaxy IC 3410
Above, a 2.4 arcmin wide closeup of IC 3410
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near lenticular galaxy IC 3410

IC 3411 (= SDSS J122912.38+243503.1)
Discovered (Mar 23, 1903) by
Max Wolf (4-155)
A 16th-magnitude spiral galaxy (type S?) in Coma Berenices (RA 12 29 12.4, Dec +24 35 02)
Apparent size 0.45 by 0.15 arcmin.
SDSS image of spiral galaxy IC 3411
Above, a 2.4 arcmin wide closeup of IC 3411
Below, a 12 arcmin wide region centered on the galaxy, also showing IC 3403
SDSS image of region near spiral galaxy IC 3411, also showing spiral galaxy IC 3403

IC 3412 (= PGC 41152)
Discovered (Feb 23, 1900) by
Arnold Schwassmann (144)
A 15th-magnitude spiral galaxy (type Sdm?) in Virgo (RA 12 29 22.6, Dec +09 59 16)
Apparent size 0.95 by 0.35 arcmin. Listed as a member (VCC 1179) of the Virgo Cluster.
SDSS image of spiral galaxy IC 3412
Above, a 2.4 arcmin wide closeup of IC 3412
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near spiral galaxy IC 3412

IC 3413 (= PGC 41155)
Discovered (Sep 7, 1900) by
Arnold Schwassmann (157)
A 14th-magnitude elliptical galaxy (type E5?) in Virgo (RA 12 29 22.6, Dec +11 26 01)
Apparent size 1.3 by 0.65 arcmin. Listed as a member (VCC 1183) of the Virgo Cluster.
SDSS image of elliptical galaxy IC 3413
Above, a 2.4 arcmin wide closeup of IC 3413
Below, a 12 arcmin wide region centered on the galaxy, also showing IC 3418
SDSS image of region near elliptical galaxy IC 3413, also showing irregular galaxy IC 3418

IC 3414 (= PGC 41166)
Discovered (Nov 8, 1899) by
Arnold Schwassmann (23)
A 13th-magnitude spiral galaxy (type SBdm pec?) in Virgo (RA 12 29 28.9, Dec +06 46 12)
Apparent size 1.5 by 0.9 arcmin. Listed as a member (VCC 1189) of the Virgo Cluster.
SDSS image of spiral galaxy IC 3414
Above, a 2.4 arcmin wide closeup of IC 3414
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near spiral galaxy IC 3414

IC 3415
Recorded (Mar 23, 1903) by
Max Wolf (4-156)
A 16th-magnitude star in Coma Berenices (RA 12 29 21.9, Dec +26 45 57)
Per Dreyer, IC 3415 (Wolf list IV #156, 1860 RA 12 22 23, NPD 62 27.5) is "faint, very small, brighter middle, spiral, possibly nebulous star". The position precesses to RA 12 29 22.5, Dec +26 46 01, almost on the star listed above, and given the description the identification is certain.
SDSS image of region near the star listed as IC 3415
Above, a 12 arcmin wide region centered on IC 3415

IC 3416 (= PGC 41178)
Discovered (May 10, 1904) by
Royal Frost (924)
A 15th-magnitude irregular galaxy (type Im?) in Virgo (RA 12 29 35.5, Dec +10 47 38)
Apparent size 0.9 by 0.4 arcmin. Listed as a member (VCC 1200) of the Virgo Cluster.
SDSS image of irregular galaxy IC 3416
Above, a 2.4 arcmin wide closeup of IC 3416
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near irregular galaxy IC 3416

IC 3417
Recorded (Jan 26, 1900) by
Arnold Schwassmann
A 16th-magnitude star in Virgo (RA 12 29 39.1, Dec +07 51 40)
Per Dreyer, IC 3417 (Schwassmann 60, 1860 RA 12 22 32, NPD 81 21.8) is "extremely faint, very small, possibly a star". The position precesses to RA 12 29 39.2, Dec +07 51 44, almost exactly on the star listed above, and given the description the identification is certain. (For an image, see the wide-field view of NGC 4470.)

IC 3418 (= PGC 41207)
Discovered (May 10, 1904) by
Royal Frost (926)
A 14th-magnitude irregular galaxy (type IBm?) in Virgo (RA 12 29 42.5, Dec +11 24 03)
Apparent size 1.5 by 1.0 arcmin. Listed as a member (VCC 1217) of the Virgo Cluster. Although a relatively ordinary looking galaxy in visible light, IC 3418 displays a dramatic "tail" in ultraviolet light, caused by rapid star formation in clouds of gas "stripped out" of the main part of the galaxy by its motion through the Virgo Cluster at a speed of about 2 million miles per hour relative to intergalactic gas within the cluster.
SDSS image of irregular galaxy IC 3418
Above, a 2.4 arcmin wide closeup of IC 3418
Below, a 12 arcmin wide region centered on the galaxy, also showing IC 3413
SDSS image of region near irregular galaxy IC 3418, also showing elliptical galaxy IC 3413
Below, an ultraviolet view of a similar region, showing the galaxy's "tail" (Image Credits: NASA/JPL-Caltech)
GALEX ultraviolet image of region near irregular galaxy IC 3418, showing rapid star formation in its gaseous 'tail'

IC 3419 (= PGC 41211)
Discovered (May 7, 1904) by
Royal Frost (925)
A 16th-magnitude elliptical galaxy (type dE5 N) in Coma Berenices (RA 12 29 44.6, Dec +15 01 27)
Apparent size 0.65 by 0.35 arcmin. Listed as a member (VCC 1222) of the Virgo Cluster.
SDSS image of elliptical galaxy IC 3419
Above, a 2.4 arcmin wide closeup of IC 3419
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near elliptical galaxy IC 3419

IC 3420
Recorded (Nov 17, 1900) by
Arnold Schwassmann
A 16th-magnitude star in Coma Berenices (RA 12 29 42.7, Dec +13 26 46)
Per Dreyer, IC 3420 (Schwassmann 257, 1860 RA 12 22 38, NPD 75 46.9) is "very faint, small, round, very questionable". The position precesses to RA 12 29 43.0, Dec +13 26 38, just southeast of the star listed above, and there is nothing else nearby save for NGC 4473 (which see for a closer view), and given the description as "very questionable", the identification is considered certain.
SDSS image showing region near elliptical galaxy NGC 4473 and lenticular galaxies NGC 4477 and 4479, also showing the star listed as IC 3420, the star listed as IC 3423, and the star listed as IC 3426
Above, 20 arcmin wide region showing NGC 4473, 4477, 4479, IC 3420, IC 3423 and IC 3426

IC 3421 (= PGC 41204)
Discovered (Mar 23, 1903) by
Max Wolf (4-157)
A 15th-magnitude spiral galaxy (type Sbc?) in Coma Berenices (RA 12 29 38.8, Dec +26 13 52)
Apparent size 0.7 by 0.55 arcmin.
SDSS image of spiral galaxy IC 3421
Above, a 2.4 arcmin wide closeup of IC 3421
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near spiral galaxy IC 3421

IC 3422 (= PGC 165191)
Discovered (May 7, 1904) by
Royal Frost (927)
A 15th-magnitude spiral galaxy (type Sc pec?) in Coma Berenices (RA 12 29 54.6, Dec +14 41 18)
Based on a recessional velocity of 24050 km/sec, a straightforward calculation indicates that IC 3422 is about 1120 million light years away. However, for objects at such distances we should take into account the Universal expansion during the time it took their light to reach us. Doing that shows that the galaxy was about 1020 million light years away at the time the light by which we see it was emitted, about 1060 million years ago (the difference between the numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of 0.55 by 0.4 arcmin, the galaxy is about 160 thousand light years across. It may be a starburst or Seyfert galaxy, as its nucleus is unusually bright in comparison to its relatively undefined structure.
SDSS image of spiral galaxy IC 3422
Above, a 2.4 arcmin wide closeup of IC 3422
Below, a 12 arcmin wide region centered on the galaxy (the 'bright' star is 7th magnitude HD 108775)
SDSS image of region near spiral galaxy IC 3422

IC 3423
Recorded (Nov 17, 1900) by
Arnold Schwassmann
A 15th-magnitude star in Coma Berenices (RA 12 29 46.5, Dec +13 39 32)
Per Dreyer, IC 3423 (Schwassmann 282, 1860 RA 12 22 42, NPD 75 34.0) is "very faint, very small". The position precesses to RA 12 29 46.9, Dec +13 39 32, right on the star listed above, and there is nothing else nearby save for NGC 4477 (which see for a closer view), so the identification is certain.
SDSS image showing region near elliptical galaxy NGC 4473 and lenticular galaxies NGC 4477 and 4479, also showing the star listed as IC 3420, the star listed as IC 3423, and the star listed as IC 3426
Above, 20 arcmin wide region showing NGC 4473, 4477, 4479, IC 3420, IC 3423 and IC 3426

IC 3424 (= SDSS J122945.03+242431.2)
Discovered (Mar 23, 1903) by
Max Wolf (4-158)
A 16th-magnitude lenticular galaxy (type S0?) in Coma Berenices (RA 12 29 45.0, Dec +24 24 30)
Apparent size 0.2 by 0.1 arcmin.
SDSS image of lenticular galaxy IC 3424
Above, a 2.4 arcmin wide closeup of IC 3424
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near lenticular galaxy IC 3424

IC 3425 (= PGC 41244)
Discovered (May 10, 1904) by
Royal Frost (928)
A 14th-magnitude spiral galaxy (type Sb(s)) in Virgo (RA 12 29 56.5, Dec +10 36 56)
Apparent size 1.6 by 0.7 arcmin. Listed as a member (VCC 1243) of the Virgo Cluster, but not actually a member of the Cluster, since much further away.
SDSS image of spiral galaxy IC 3425
Above, a 2.4 arcmin wide closeup of IC 3425
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near spiral galaxy IC 3425

IC 3426
Recorded (Nov 17, 1900) by
Arnold Schwassmann
A 14th-magnitude star in Coma Berenices (RA 12 30 01.5, Dec +13 35 54)
Per Dreyer, IC 3426 (Schwassmann 284, 1860 RA 12 22 57, NPD 75 37.4) is "very faint, very small". The position precesses to RA 12 30 01.9, Dec +13 36 08, about 0.3 arcmin northeast of the star listed above, and there is nothing near save NGC 4477 (which see for a closer view), so the identification is certain.
SDSS image showing region near elliptical galaxy NGC 4473 and lenticular galaxies NGC 4477 and 4479, also showing the star listed as IC 3420, the star listed as IC 3423, and the star listed as IC 3426
Above, 20 arcmin wide region showing NGC 4473, 4477, 4479, IC 3420, IC 3423 and IC 3426

IC 3427 (=
NGC 4482 = PGC 41272)
Discovered (Mar 15, 1784) by William Herschel (and later listed as NGC 4482)
Discovered (Sep 6, 1900) by Arnold Schwassmann (and later listed as IC 3427)
A 13th-magnitude elliptical galaxy (type E4) in Virgo (RA 12 30 10.3, Dec +10 46 45)
Per Dreyer, IC 3427 (Schwassmann 158, Frost, 1860 RA 12 23 05, NPD 78 26.8) is "faint, very small, excentric nucleus to east". The position precesses to RA 12 30 11.0, Dec +10 46 44, right on the galaxy, so the identification is certain. Dreyer's notes for the second IC include a comment about Bigourdan's corrected position for NGC 4482. That position puts NGC 4482 two arcmin directly south of IC 3427, so the duplicate entry might have been avoided with a little more investigation; but per Corwin, Adelaide Ames was the first to realize the duplication, over twenty years later. (See NGC 4482 for anything else.)

IC 3428
Recorded (Mar 23, 1903) by
Max Wolf
A 15th-magnitude star in Coma Berenices (RA 12 30 07.6, Dec +23 40 30)
Per Dreyer, IC 3428 (Wolf list IV #160, 1860 RA 12 23 07, NPD 65 33.1) is "faint, small, round, brighter middle". The position precesses to RA 12 30 07.6, Dec +23 40 26, almost exactly on the star listed above, and there is nothing else nearby so the identification is certain.
SDSS image of region near the star listed as IC 3428
Above, a 12 arcmin wide region centered on IC 3428

IC 3429 ( = SDSS J123007.93+233242.4)
Discovered (Mar 23, 1903) by
Max Wolf (4-161)
A 15th-magnitude spiral galaxy (type (R)S pec?) in Coma Berenices (RA 12 30 07.9, Dec +23 32 44)
Apparent size 0.3 by 0.25 arcmin. Accompanied by a smaller galaxy with which it is probably interacting.
SDSS image of spiral galaxy IC 3429
Above, a 2.4 arcmin wide closeup of IC 3429
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near spiral galaxy IC 3429

IC 3430 (= PGC 41294)
Discovered (Feb 15, 1900) by
Arnold Schwassmann (110)
A 15th-magnitude irregular galaxy (type Im) in Virgo (RA 12 30 17.1, Dec +09 05 04)
Apparent size 1.0 by 0.4 arcmin. Listed as a member (VCC 1273) of the Virgo Cluster.
SDSS image of irregular galaxy IC 3430
Above, a 2.4 arcmin wide closeup of IC 3430
Below, a 12 arcmin wide region centered on the galaxy, also showing NGC 4483
SDSS image of irregular galaxy IC 3430, also showing lenticular galaxy NGC 4483

IC 3431 (= PGC 139911)
Discovered (May 10, 1904) by
Royal Frost (930)
A 16th-magnitude spiral galaxy (type Sc?) in Virgo (RA 12 30 24.2, Dec +11 36 51)
Apparent size 0.45 by 0.3 arcmin.
SDSS image of spiral galaxy IC 3431
Above, a 2.4 arcmin wide closeup of IC 3431
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near spiral galaxy IC 3431

IC 3432 (= PGC 41320)
Discovered (May 10, 1904) by
Royal Frost (929)
A 15th-magnitude spiral galaxy (type Sc pec?) in Coma Berenices (RA 12 30 27.8, Dec +14 09 38)
Apparent size 0.65 by 0.35 arcmin. Listed as a member (VCC 1293) of the Virgo Cluster, but not actually a Cluster member, as far beyond it.
SDSS image of spiral galaxy IC 3432
Above, a 2.4 arcmin wide closeup of IC 3432
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near spiral galaxy IC 3432

IC 3433 (= PGC 41321)
Discovered (May 7, 1904) by
Royal Frost (931)
A 15th-magnitude elliptical galaxy (type dE4?) in Coma Berenices (RA 12 30 28.3, Dec +17 18 34)
Apparent size 0.85 by 0.5 arcmin. Listed as a member (VCC 1294) of the Virgo Cluster
SDSS image of elliptical galaxy IC 3433
Above, a 2.4 arcmin wide closeup of IC 3433
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near elliptical galaxy IC 3433

IC 3434 (= PGC 41324)
Discovered (May 7, 1904) by
Royal Frost (932)
A 15th-magnitude spiral galaxy (type Sbc?) in Coma Berenices (RA 12 30 27.2, Dec +18 48 34)
Apparent size 0.6 by 0.25 arcmin.
SDSS image of spiral galaxy IC 3434
Above, a 2.4 arcmin wide closeup of IC 3434
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near spiral galaxy IC 3434

IC 3435 (= PGC 41338)
Discovered (May 7, 1904) by
Royal Frost (933)
A 15th-magnitude lenticular galaxy (type dS0-?) in Coma Berenices (RA 12 30 39.9, Dec +15 07 47)
Apparent size 1.3 by 0.3 arcmin. Listed as a member (VCC 1304) of the Virgo Cluster.
SDSS image of lenticular galaxy IC 3435
Above, a 2.4 arcmin wide closeup of IC 3435
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near lenticular galaxy IC 3435

IC 3436 (= PGC 41323)
Discovered (May 7, 1904) by
Royal Frost (934)
A 14th-magnitude lenticular galaxy (type S0 pec?) in Coma Berenices (RA 12 30 29.9, Dec +19 40 25)
Apparent size 0.65 by 0.55 arcmin.
SDSS image of lenticular galaxy IC 3436
Above, a 2.4 arcmin wide closeup of IC 3436
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near lenticular galaxy IC 3436

IC 3437 (= PGC 41350)
Discovered (May 10, 1904) by
Royal Frost (935)
A 14th-magnitude elliptical galaxy (type dE5?) in Virgo (RA 12 30 45.9, Dec +11 20 34)
Apparent size 0.9 by 0.45 arcmin. Listed as a member (VCC 1308) of the Virgo Cluster.
SDSS image of elliptical galaxy IC 3437
Above, a 2.4 arcmin wide closeup of IC 3437
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near elliptical galaxy IC 3437

IC 3438 (=
NGC 4492 = PGC 41383)
Discovered (Dec 28, 1785) by William Herschel (and later listed as NGC 4492)
Discovered (Jan 23, 1900) by Arnold Schwassmann (and later listed as IC 3438)
A 13th-magnitude spiral galaxy (type SA(s)a?) in Virgo (RA 12 30 59.7, Dec +08 04 41)
Per Dreyer, IC 3438 (Schwassmann 65, 1860 RA 12 23 53, NPD 81 08.8) is "considerably faint, small, faint nucleus". The position precesses to RA 12 30 59.9, Dec +08 04 45, right on the galaxy, so the identification is certain. Herschel's position is also right on the galaxy, so the double listing was simply a failure by Schwassmann and Dreyer to notice the identity; per Corwin, it was first picked up by Adelaide Ames. (See NGC 4492 for anything else.)

IC 3439 (= SDSS J123059.47+253342.6)
Discovered (Mar 23, 1903) by
Max Wolf (4-162)
A 16th-magnitude spiral galaxy (type S?) in Coma Berenices (RA 12 30 59.6, Dec +25 33 41)
Apparent size 0.5 by 0.4 arcmin.
SDSS image of spiral galaxy IC 3439
Above, a 2.4 arcmin wide closeup of IC 3439
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near spiral galaxy IC 3439

IC 3440 (= PGC 169460)
Discovered (Sep 13, 1900) by
Arnold Schwassmann (198)
A 16th-magnitude spiral galaxy (type Sc?) in Virgo (RA 12 31 05.1, Dec +12 01 46)
Apparent size 0.45 by 0.4 arcmin.
SDSS image of spiral galaxy IC 3440
Above, a 2.4 arcmin wide closeup of IC 3440
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near spiral galaxy IC 3440

IC 3441 (= PGC 41412)
Discovered (Mar 23, 1903) by
Max Wolf (4-163)
A 15th-magnitude lenticular galaxy (type S0 pec) in Coma Berenices (RA 12 31 04.5, Dec +28 51 13)
Apparent size 0.7 by 0.5 arcmin. Bi-nuclear, and barring an accidental superposition of images, probably a pair of interacting or merging galaxies. Vr 19636 km/sec. z=.065497, meaning that the space its light passed through to reach us expanded by that fraction of its original size during the journey.
SDSS image of lenticular galaxy IC 3441
Above, a 2.4 arcmin wide closeup of IC 3441
Below, a 12 arcmin wide region centered on the galaxy, also showing IC 3451
SDSS image of region near lenticular galaxy IC 3441, also showing lenticular galaxy IC 3451

IC 3442 (= PGC 41435)
Discovered (May 10, 1904) by
Royal Frost (936)
A 14th-magnitude elliptical galaxy (type dE0) in Coma Berenices (RA 12 31 20.2, Dec +14 06 52)
Apparent size 1.5 by 1.45 arcmin. Listed as a member (VCC 1355) of the Virgo Cluster.
SDSS image of elliptical galaxy IC 3442
Above, a 2.4 arcmin wide closeup of IC 3442
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near elliptical galaxy IC 3442

IC 3443 (= PGC 41421)
Discovered (May 10, 1904) by
Royal Frost (937)
A 15th-magnitude elliptical galaxy (type dE1 N?) in Virgo (RA 12 31 15.6, Dec +12 19 56)
Apparent size 0.7 by 0.6 arcmin. Listed as a member (VCC 1348) of the Virgo Cluster.
SDSS image of elliptical galaxy IC 3443
Above, a 2.4 arcmin wide closeup of IC 3443
Below, a 12 arcmin wide region centered on the galaxy, also showing M87 and PGC 41377
SDSS image of region near elliptical galaxy IC 3443, also showing elliptical galaxies NGC 4486 (also known as M87) and PGC 41377 (also known as NGC 4486A)

IC 3444
Recorded (Mar 23, 1903) by
Max Wolf (4-164)
A 16th-magnitude star in Coma Berenices (RA 12 31 14.1, Dec +27 32 57)
SDSS image of region centered on the star listed as IC 3444, also showing spiral galaxy IC 3454
Above a 12 arcmin wide region centered on IC 3444, also showing IC 3454

IC 3445 (= PGC 41432)
Discovered (May 10, 1904) by
Royal Frost (938)
A 15th-magnitude elliptical galaxy (type dE2?) in Virgo (RA 12 31 19.4, Dec +12 44 16)
Apparent size 0.43 by 0.35 arcmin. Listed as a member (VCC 1353) of the Virgo Cluster.
SDSS image of elliptical galaxy IC 3445
Above, a 2.4 arcmin wide closeup of IC 3445
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near elliptical galaxy IC 3445

IC 3446 (= PGC 41440)
Discovered (May 10, 1904) by
Royal Frost (939)
A 15th-magnitude spiral galaxy (type Sdm?) in Virgo (RA 12 31 23.0, Dec +11 29 33)
Apparent size 0.65 by 0.3 arcmin. Listed as a member (VCC 1356) of the Virgo Cluster.
SDSS image of spiral galaxy IC 3446
Above, a 2.4 arcmin wide closeup of IC 3446
Below, a 12 arcmin wide region centered on the galaxy, also showing part of NGC 4491
SDSS image of region near spiral galaxy IC 3446, also showing part of spiral galaxy NGC 4491

IC 3447 (= PGC 165209)
Discovered (May 10, 1904) by
Royal Frost (940)
A 16th-magnitude spiral galaxy (type SABb?) in Virgo (RA 12 31 17.9, Dec +10 40 48)
Apparent size 0.3 by 0.3 arcmin.
SDSS image of spiral galaxy IC 3447
Above, a 2.4 arcmin wide closeup of IC 3447
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near spiral galaxy IC 3447

IC 3448 (= PGC 41439)
Discovered (May 7, 1904) by
Royal Frost (941)
A 15th-magnitude elliptical galaxy (type dE4?) in Coma Berenices (RA 12 31 23.1, Dec +17 12 22)
Apparent size 0.95 by 0.6 arcmin. Listed as a member (VCC 1358) of the Virgo Cluster.
SDSS image of elliptical galaxy IC 3448
Above, a 2.4 arcmin wide closeup of IC 3448
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near elliptical galaxy IC 3448

IC 3449 (= PGC 89615)
Discovered (Mar 23, 1903) by
Max Wolf (4-165)
A 16th-magnitude spiral galaxy (type Sd pec?) in Coma Berenices (RA 12 31 22.9, Dec +25 54 52)
Apparent size 0.2 by 0.1 arcmin.
SDSS image of spiral galaxy IC 3449
Above, a 2.4 arcmin wide closeup of IC 3449
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near spiral galaxy IC 3449
Celestial Atlas
(IC 3350 - 3399) ←     IC Objects: IC 3400 - 3449     → (IC 3450 - 3499)