Celestial Atlas
(IC 3950 - 3999) ←     IC Objects: IC 4000 - 4049 Link for sharing this page on Facebook     → (IC 4050 - 4099)
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4000, 4001, 4002, 4003, 4004, 4005, 4006, 4007, 4008, 4009, 4010, 4011, 4012,
4013, 4014, 4015, 4016, 4017, 4018, 4019, 4020, 4021, 4022, 4023, 4024, 4025,
4026, 4027, 4028, 4029, 4030, 4031, 4032, 4033, 4034, 4035, 4036, 4037, 4038,
4039, 4040, 4041, 4042, 4043, 4044, 4045, 4046, 4047, 4048, 4049

Page last updated Nov 8, 2013
WORKING: Check positions, historical IDs (Corwin+), add basic pix, captions, tags

IC 4000 (= PGC 2152407)
Discovered (Mar 21, 1903) by
Max Wolf (5-127)
A magnitude 15.3 lenticular galaxy (type S0/a(r)?) in Canes Venatici (RA 12 59 36.6, Dec +39 35 16)
Based on a recessional velocity of 33350 km/sec, a straightforward calculation indicates that IC 4000 is about 1550 million light years away. However, for objects at that distance we need to take the expansion of the Universe during their light-travel time into account. Doing that shows that the galaxy was about 1370 million light years away at the time the light by which we see it was emitted, about 1440 million years ago (the difference between the two numbers being due to the expansion of the Universe during that interval). Given that and its apparent size of 0.25 by 0.2 arcmin, the galaxy is about 100 thousand light years across.
SDSS image of lenticular galaxy IC 4000
Above, a 0.6 arcmin wide SDSS image of IC 4000
Below, a 12 arcmin wide SDSS image centered on the galaxy
SDSS image of region near lenticular galaxy IC 4000

IC 4001 (= PGC 2138467)
Discovered (Mar 21, 1903) by
Max Wolf (5-128)
A magnitude 15.0 lenticular galaxy (type S0/a?) in Canes Venatici (RA 12 59 37.8, Dec +38 52 11)
Apparent size 0.6 by 0.3 arcmin?

IC 4002 (= PGC 44648)
Discovered (Mar 21, 1903) by
Max Wolf (5-129)
A magnitude 15.0 spiral galaxy (type SBm?) in Canes Venatici (RA 12 59 40.7, Dec +36 45 52)
Apparent size 0.35 by 0.17 arcmin.
SDSS image of spiral galaxy IC 4002
Above, a 0.6 arcmin wide SDSS image of IC 4002
Below, a 12 arcmin wide SDSS image centered on the galaxy
SDSS image of region near spiral galaxy IC 4002

IC 4003 (= PGC 44619)
Discovered (Mar 21, 1903) by
Max Wolf (5-130)
A magnitude 14.3 lenticular galaxy (type S0/a?) in Canes Venatici (RA 12 59 39.3, Dec +38 48 58)
Apparent size 0.7 by 0.7 arcmin?

IC 4004 (= PGC 44618)
Discovered (Mar 21, 1903) by
Max Wolf (5-131)
A magnitude 14.5 lenticular galaxy (type S0?) in Canes Venatici (RA 12 59 42.8, Dec +38 48 40)
Apparent size 0.8 by 0.8 arcmin?

IC 4005
Recorded (Jan 27, 1904) by
Max Wolf (6-134)
A pair of stars in Coma Berenices (RA 13 00 02.6, Dec +22 38 24)

IC 4006
Recorded (Mar 21, 1903) by
Max Wolf (5-132)
A star in Canes Venatici (RA 12 59 49.0, Dec +37 00 38)

IC 4007 (= PGC 3800218)
Discovered (Jan 27, 1904) by
Max Wolf (6-135)
A magnitude 15.4 lenticular galaxy (type S0/a?) in Coma Berenices (RA 13 00 07.0, Dec +19 57 53)
plus a magnitude 16.7 double star ("PGC 4662914") at RA 13 00 06.7, Dec +19 57 46
Most references list the double star as a double galaxy, and on Wolf's plate the double probably appeared to be part of the IC object, hence my decision to list it as such in this entry (and in fact both NED and LEDA use the position of the double star as the position of IC 4007). Apparent size 0.4 by 0.2 arcmin?

IC 4008
Recorded (Jan 27, 1904) by
Max Wolf (6-136)
A pair of stars in Coma Berenices (RA 13 00 06.0, Dec +22 21 02)

IC 4009
Recorded (Mar 21, 1903) by
Max Wolf (5-133)
A star in Canes Venatici (RA 12 59 52.5, Dec +36 39 42)

IC 4010 (= PGC 2111366)
Discovered (Mar 21, 1903) by
Max Wolf (5-134)
A magnitude 15.7 spiral galaxy (type (R)Sa(r)?) in Canes Venatici (RA 12 59 53.9, Dec +37 51 34)
Apparent size 0.4 by 0.2 arcmin?

IC 4011 (= PGC 44705)
Discovered (Apr 22, 1895) by
Hermann Kobold (22, Nk)
A magnitude 15.1 elliptical galaxy (type E0?) in Coma Berenices (RA 13 00 06.6, Dec +28 00 11)
Apparent size 0.5 by 0.5 arcmin? (for now, refer to images of NGC 4889)

IC 4012 (= PGC 44714)
Discovered (May 11, 1896) by
Hermann Kobold (23, N(13))
A magnitude 14.9 elliptical galaxy (type E3??) in Coma Berenices (RA 13 00 08.1, Dec +28 04 42)
Apparent size 0.3 by 0.2 arcmin?

IC 4013
Recorded (Mar 21, 1903) by
Max Wolf (5-135)
A star in Canes Venatici (RA 12 59 57.9, Dec +37 11 54)

IC 4014 (= PGC 1671081)
Discovered (Jan 27, 1904) by
Max Wolf (6-137)
A magnitude 15.0 elliptical galaxy (type E0??) in Coma Berenices (RA 13 00 13.9, Dec +22 29 57)
Apparent size 0.2 by 0.2 arcmin?

IC 4015 (=
NGC 4893 = PGC 44690)
Discovered (Apr 24, 1865) by Heinrich d'Arrest (and later listed as NGC 4893)
Discovered (Mar 21, 1903) by Max Wolf (5-136) (and later listed as IC 4015)
A magnitude 14.3 elliptical galaxy (type E2? pec?) in Canes Venatici (RA 12 59 59.6, Dec +37 11 36)
This entry will primarily contain historical information; for anything else see NGC 4893.

IC 4016 (= PGC 44696 = "NGC 4893A")
Discovered (Mar 21, 1903) by
Max Wolf (5-137)
A magnitude 15.0 lenticular galaxy (type S0? pec) in Canes Venatici (RA 12 59 59.9, Dec +37 11 14)
Apparent size 0.3 by 0.2 arcmin. An interacting pair with NGC 4893, and as a result often called NGC 4893A. (Note: LEDA and Wikisky only show the object by searching for PGC 44696.)
SDSS image of lenticular galaxy IC 4016, sometimes called NGC 4893A; also shown is NGC 4893
Above, a 1.2 arcmin wide SDSS image of IC 4016 and NGC 4893
Below, a 12 arcmin wide SDSS image centered on the pair
SDSS image of region near NGC 4893 and its companion, lenticular galaxy IC 4016, which is sometimes called NGC 4893A

IC 4017 (= PGC 1672129)
Discovered (Jan 27, 1904) by
Max Wolf (6-138)
A magnitude 15.4 spiral galaxy (type SBb? pec) in Coma Berenices (RA 13 00 16.0, Dec +22 33 20)
Based on a recessional velocity of 53175 km/sec, a straightforward calculation indicates that IC 4017 is about 2475 million light years away. However, for objects at that distance we need to take the expansion of the Universe during their light-travel time into account. Doing that shows that the galaxy was about 2025 million light years away at the time the light by which we see it was emitted, about 2200 million years ago (the difference between the two numbers being due to the expansion of the Universe during that interval). Given that and its apparent size of 0.37 by 0.15 arcmin, the galaxy is about 220 thousand light years across. (The bright knot on its western edge may be a region of unusual activity, or an interacting companion.)
SDSS image of spiral galaxy IC 4017
Above, a 0.6 arcmin wide SDSS image of IC 4017
Below, a 12 arcmin wide region centered on the galaxy
SDSS image of region near spiral galaxy IC 4017

IC 4018 (= PGC 3800150)
Discovered (Mar 21, 1903) by
Max Wolf (5-138)
A magnitude 15.5 elliptical galaxy (type E3??) in Canes Venatici (RA 12 59 57.5, Dec +40 29 19)
Apparent size 0.3 by 0.2 arcmin?

IC 4019
Recorded (Jan 27, 1904) by
Max Wolf (6-139)
A pair of stars in Coma Berenices (RA 13 00 17.2, Dec +23 43 10)

IC 4020 (= PGC 2131719)
Discovered (Mar 21, 1903) by
Max Wolf (5-139)
A magnitude 15.2 spiral galaxy (type Sb?) in Canes Venatici (RA 13 00 03.4, Dec +38 36 35)
Apparent size 0.8 by 0.15 arcmin.
SDSS image of spiral galaxy IC 4020
Above, a 1.2 arcmin wide SDSS image of IC 4020
Below, a 12 arcmin wide SDSS image centered on the galaxy
SDSS image of region near spiral galaxy IC 4020

IC 4021 (= PGC 44726)
Discovered (May 11, 1896) by
Hermann Kobold (25, N(11))
A magnitude 14.8 elliptical galaxy (type E0??) in Coma Berenices (RA 13 00 14.9, Dec +28 02 26)
Apparent size 0.4 by 0.4 arcmin? (for now, refer to images of NGC 4889)

IC 4022
Recorded (Mar 21, 1903) by
Max Wolf (5-140)
A star in Canes Venatici (RA 13 00 05.2, Dec +38 28 47)

IC 4023 (= PGC 3800326)
Discovered (Jan 27, 1904) by
Max Wolf (6-140)
A magnitude 15.0 elliptical galaxy (type E0??) in Coma Berenices (RA 13 00 26.5, Dec +19 05 48)
Apparent size 0.3 by 0.3 arcmin?

IC 4024
Recorded (Mar 21, 1903) by
Max Wolf (5-141)
A star in Canes Venatici (RA 13 00 03.9, Dec +40 30 32)

IC 4025 (= PGC 4350665)
Discovered (Jan 27, 1904) by
Max Wolf (6-141)
A magnitude 15.5 elliptical galaxy (type E0??) in Coma Berenices (RA 13 00 28.3, Dec +19 06 19)
Apparent size 0.3 by 0.3 arcmin?

IC 4026 (= PGC 44749)
Discovered (May 11, 1896) by
Hermann Kobold (26, N(12))
A magnitude 14.6 lenticular galaxy (type SB0??) in Coma Berenices (RA 13 00 22.3, Dec +28 02 47)
Apparent size 0.3 by 0.3 arcmin? (for now, refer to images of NGC 4889)

IC 4027 (= PGC 2093824)
Discovered (Mar 21, 1903) by
Max Wolf (5-142b)
A magnitude 15.0 lenticular galaxy (type SB0??) in Canes Venatici (RA 13 00 13.8, Dec +37 08 27)
Apparent size 0.3 by 0.1 arcmin?

IC 4028 (= PGC 44731)
Discovered (Mar 21, 1903) by
Max Wolf (5-143)
A magnitude 14.4 spiral galaxy (type SABc?) in Canes Venatici (RA 13 00 16.5, Dec +36 15 11)
Apparent size 0.9 by 0.8 arcmin.
SDSS image of spiral galaxy IC 4028
Above, a 1.2 arcmin wide SDSS image of IC 4028
Below, a 12 arcmin wide SDSS image centered on the galaxy, also showing IC 4049
SDSS image of region near spiral galaxy IC 4028, also showing IC 4049

IC 4029 (= PGC 2135829)
Discovered (Mar 21, 1903) by
Max Wolf (5-144)
A magnitude 15.0 lenticular galaxy (type S0??) in Canes Venatici (RA 13 00 14.2, Dec +38 45 35)
Apparent size 0.3 by 0.1 arcmin?

IC 4030 (= PGC 44763)
Discovered (May 9, 1896) by
Hermann Kobold (27, N(9))
A magnitude 15.4 lenticular galaxy (type S0??) in Coma Berenices (RA 13 00 28.0, Dec +27 57 18)
Apparent size 0.4 by 0.3 arcmin?

IC 4031 (= PGC 3800266)
Discovered (Mar 21, 1903) by
Max Wolf (5-145)
A magnitude 15.5 elliptical galaxy (type E0??) in Canes Venatici (RA 13 00 15.5, Dec +39 08 42)
Apparent size 0.2 by 0.2 arcmin?

IC 4032 (= PGC 44756)
Discovered (Jun 6, 1896) by
Stephane Javelle (1233)
A magnitude 14.5 lenticular galaxy (type S0??) in Coma Berenices (RA 13 00 25.8, Dec +28 52 04)
Apparent size 0.4 by 0.3 arcmin?

IC 4033 (= PGC 44771)
Discovered (May 9, 1896) by
Hermann Kobold (28, N(10))
A magnitude 15.0 lenticular galaxy (type S0??) in Coma Berenices (RA 13 00 28.6, Dec +27 58 20)
Apparent size 0.7 by 0.3 arcmin?

IC 4034 (= PGC 214050)
Discovered (Mar 21, 1903) by
Max Wolf (5-146)
A magnitude 15.0 elliptical galaxy (type E0??) in Canes Venatici (RA 13 00 19.8, Dec +37 02 45)
Apparent size 0.2 by 0.2 arcmin?

IC 4035 (= PGC 2163772)
Discovered (Mar 21, 1903) by
Max Wolf (5-147)
A magnitude 15.4 spiral galaxy (type S??) in Canes Venatici (RA 13 00 16.7, Dec +40 17 58)
Apparent size 0.4 by 0.2 arcmin?

IC 4036
Recorded (Mar 21, 1903) by
Max Wolf (5-148)
A star in Canes Venatici (RA 13 00 20.6, Dec +36 54 34)

IC 4037 (= PGC 2141402)
Discovered (Mar 21, 1903) by
Max Wolf (5-149)
A magnitude 15.5 spiral galaxy (type Sc?) in Canes Venatici (RA 13 00 19.4, Dec +39 00 09)
Apparent size 0.35 by 0.25 arcmin.
SDSS image of spiral galaxy IC 4037
Above, a 0.6 arcmin wide SDSS image of IC 4037
Below, a 12 arcmin wide SDSS image centered on the galaxy
SDSS image of region near spiral galaxy IC 4037

WORKING HERE

IC 4038 (= PGC 214051)
Discovered (Mar 21, 1903) by
Max Wolf (5-150)
A magnitude 15.3 lenticular galaxy (type S0??) in Canes Venatici (RA 13 00 21.7, Dec +37 02 23)
Apparent size 0.3 by 0.2 arcmin?

IC 4039 (= PGC 1655188)
Discovered (Jan 27, 1904) by
Max Wolf (6-142)
A magnitude 15.3 compact galaxy (type SAB0/a?) in Coma Berenices (RA 13 00 39.3, Dec +21 41 32)
Apparent size 0.2 by 0.2 arcmin?

IC 4040 (= PGC 44789)
Discovered (Apr 12, 1891) by
Guillaume Bigourdan (306)
A magnitude 14.8 spiral galaxy (type Sbc? pec) in Coma Berenices (RA 13 00 38.1, Dec +28 03 24)
Apparent size 0.8 by 0.3 arcmin.
SDSS image of spiral galaxy IC 4040
Above, a 1.0 arcmin wide SDSS image of IC 4040
Below, a 12 arcmin wide SDSS image centered on the galaxy
Also shown are NGC 4889, 4894, 4898, 4907 and 4908, and IC 4021, 4026, 4041, 4042, 4045 and 4051
SDSS image of region near spiral galaxy IC 4040, also showing NGC 4889, NGC 4894, NGC 4898, NGC 4907, NGC 4908, IC 4021, IC 4026, IC 4041, IC 4042, IC 4045 and IC 4051

IC 4041 (= PGC 44804)
Discovered (May 8, 1896) by
Hermann Kobold (30, N(5))
A magnitude 14.4 elliptical galaxy (type E5??) in Coma Berenices (RA 13 00 40.8, Dec +27 59 49)
Apparent size 0.4 by 0.2 arcmin? (for now, refer to images of IC 4040)

IC 4042 (= PGC 44808)
Discovered (May 9, 1896) by
Hermann Kobold (31, N(6))
A magnitude 14.3 lenticular galaxy (type SB0??) in Coma Berenices (RA 13 00 42.7, Dec +27 58 18)
Apparent size 0.5 by 0.5 arcmin? (for now, refer to images of IC 4040)

PGC 44809 (= "IC 4042A")
Not an IC object but sometimes called IC 4042A due to proximity to
IC 4042
A magnitude 15.3 lenticular galaxy (type S0??) in Coma Berenices (RA 13 00 42.8, Dec +27 57 48)
Apparent size 0.4 by 0.4 arcmin?

IC 4043 (= PGC 44814)
Discovered (Mar 21, 1903) by
Max Wolf (5-151)
A magnitude 15.9 spiral galaxy (type SBd/Irr?) in Canes Venatici (RA 13 00 34.9, Dec +37 04 15)
Apparent size 1.0 by 0.3 arcmin.
SDSS image of spiral galaxy IC 4043
Above, a 1.2 arcmin wide SDSS image of IC 4043
Below, a 12 arcmin wide SDSS image centered on the galaxy
SDSS image of region near spiral galaxy IC 4043

IC 4044 (= PGC 44821)
Discovered (May 9, 1896) by
Hermann Kobold (32, N(8))
A magnitude 15.4 lenticular galaxy (type S0/a??) in Coma Berenices (RA 13 00 47.5, Dec +27 55 18)
Apparent size 0.3 by 0.2 arcmin?

IC 4045 (= PGC 44818)
Discovered (Apr 12, 1891) by
Guillaume Bigourdan (307)
A magnitude 13.9 elliptical galaxy (type E4??) in Coma Berenices (RA 13 00 48.8, Dec +28 05 25)
Apparent size 0.8 by 0.5 arcmin?
(for now, see the wide-field image at IC 4040)

IC 4046
Recorded (Mar 21, 1903) by
Max Wolf (5-152)
A star in Canes Venatici (RA 13 00 39.7, Dec +36 41 07)

IC 4047 (= PGC 44816)
Discovered (Jan 27, 1904) by
Max Wolf (6-143)
A magnitude 15.1 spiral galaxy (type Sb??) in Coma Berenices (RA 13 00 57.6, Dec +19 41 15)
Apparent size 0.4 by 0.4 arcmin?

IC 4048 (= PGC 2156354)
Discovered (Mar 21, 1903) by
Max Wolf (5-153)
A magnitude 15.2 spiral galaxy (type S??) in Canes Venatici (RA 13 00 38.2, Dec +39 49 50)
Apparent size 0.4 by 0.2 arcmin?

IC 4049 (= PGC 44806)
Discovered (Mar 21, 1903) by
Max Wolf (5-154)
A magnitude 14.3 lenticular galaxy (type (R)S0/a(r)?) in Canes Venatici (RA 13 00 42.6, Dec +36 20 45)
Apparent size 1.15 by 0.8 arcmin.
SDSS image of lenticular galaxy IC 4049
Above, a 1.2 arcmin wide SDSS image of IC 4049
Below, a 12 arcmin wide SDSS image centered on the galaxy, also showing IC 4028
SDSS image of region near lenticular galaxy IC 4049, also showing IC 4028
Celestial Atlas
(IC 3950 - 3999) ←     IC Objects: IC 4000 - 4049     → (IC 4050 - 4099)