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950, 951, 952, 953, 954, 955, 956, 957, 958, 959, 960, 961, 962, 963, 964, 965, 966,
967, 968, 969, 970, 971, 972, 973, 974, 975, 976, 977, 978, 979, 980, 981, 982, 983,
984, 985, 986, 987, 988, 989, 990, 991, 992, 993, 994, 995, 996, 997, 998, 999
Page last updated Mar 22, 2013
WORKING: Add positions/physical data (per Steinicke)
IC 950 (= PGC 49280 + PGC 3442468)
Discovered (May 24, 1892) by Stephane Javelle (262)
A pair of interacting galaxies in Boötes
IC 950 NED01 = PGC 3442468 = a 16th-magnitude spiral galaxy (type S?) (RA 13 52 25.6, Dec +14 29 19)
IC 950 NED02 = PGC 49280 = a 15th-magnitude spiral galaxy (type S?) (RA 13 52 26.7, Dec +14 29 27)
IC 950 NED01 has a recessional velocity of 12415 km/sec, while IC 950 NED02 has a recessional velocity of 12180 km/sec. Their obvious interaction implies that the galaxies are at about the same distance. Their average recessional velocity suggests a distance of about 550 million light years. Given NED01's apparent size of 0.3 by 0.2 arcmins, it is about 50 thousand light years in diameter, while NED02's apparent size of 0.5 by 0.4 arcmins suggests a diameter of about 80 thousand light years. These sizes do not take into account the galaxies' extensive region of gravitational interaction, which spans a square arcminute, or about 160 thousand light years. |
Above, a 2.4 arcmin wide closeup of IC 950, showing the PGC listings for each galaxy
Below, a 12 arcmin wide region centered on the pair
IC 951
Discovered (May 6, 1888) by Lewis Swift (VII-40)
IC 952
Discovered (Jun 3, 1891) by Stephane Javelle (263)
IC 953
Recorded (Apr 24, 1889) by N. M. Parrish
Listed as a star in Centaurus (RA 13 54 57.0, Dec -30 17 00)
(Which star is hard to say, since there is nothing at the position listed by Steinicke)
IC 954
Discovered (Jun 7, 1888) by Lewis Swift (VII-39)
IC 955
Recorded (Mar 3, 1889) by N. M. Parrish
A lost or nonexistent object in Centaurus (RA 13 55 43.6, Dec -30 15 43)
(Need to check position listed above; presumably but not necessarily the precessed value)
IC 956
Discovered (Jun 16, 1892) by Stephane Javelle (264)
IC 957
Recorded (Mar 3, 1889) by N. M. Parrish
A lost or nonexistent object in Centaurus (RA 13 56 07.8, Dec -30 14 17)
(Need to check position listed above; presumably but not necessarily the precessed value)
IC 958 (= NGC 5360)
Discovered (May 8, 1864) by Albert Marth (and later listed as NGC 5360)
Discovered (Apr 19, 1890) by Lewis Swift (IX-39) (and later listed as IC 958)
IC 959
Discovered (Apr 20, 1889) by Lewis Swift (VIII-79)
IC 960
Discovered (Jun 17, 1892) by Stephane Javelle (265)
IC 961
Discovered (Jun 16, 1892) by Stephane Javelle (266)
IC 962
Discovered (Apr 7, 1889) by Lewis Swift (VIII-80)
IC 963
Discovered (Jun 23, 1892) by Stephane Javelle (267)
IC 964
Discovered (Jun 23, 1892) by Stephane Javelle (268)
IC 965
Discovered (Jun 23, 1892) by Stephane Javelle (269)
IC 966
Discovered (Jun 5, 1893) by Stephane Javelle (775)
IC 967
Discovered (May 24, 1892) by Stephane Javelle (270)
IC 968
Discovered (May 6, 1888) by Guillaume Bigourdan (181)
IC 969
Discovered (Jun 10, 1893) by Stephane Javelle (776)
IC 970
Discovered (May 24, 1892) by Stephane Javelle (271)
IC 971
Discovered (May 20, 1868) by Truman Safford (105)
The second IC adds "Description is: Fine spiral, pretty large, much brighter middle (per Wolf, A.N. 4013."
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IC 972
Discovered (May 25, 1892) by Stephane Javelle (272)
IC 973 (= NGC 5467)
Discovered (April, 1882) by Wilhelm Tempel (and later listed as NGC 5467)
Discovered (May 21, 1890) by Guillaume Bigourdan (182) (and later listed as IC 973)
IC 974
Discovered (May 21, 1890) by Guillaume Bigourdan (183)
IC 975
Discovered (Jul 22, 1892) by Stephane Javelle (273)
IC 976
Discovered (Apr 12, 1888) by Lewis Swift (VII-41)
IC 977
Discovered (Jul 8, 1893) by Stephane Javelle (777)
IC 978
Discovered (Jul 8, 1893) by Stephane Javelle (778)
IC 979
Discovered (May 3, 1891) by Lewis Swift (X-25)
IC 980
Discovered (Jun 16, 1893) by Stephane Javelle (779)
IC 981
Discovered (Jul 12, 1893) by Stephane Javelle (780)
IC 982
Discovered (May 27, 1891) by Stephane Javelle (274)
IC 983
Discovered (May 27, 1891) by Stephane Javelle (275)
IC 984
Discovered (May 27, 1891) by Stephane Javelle (276)
IC 985
Discovered (Feb 19, 1887) by Francis Leavenworth (635)
IC 986
Discovered (Jun 8, 1893) by Stephane Javelle (781)
IC 987
Discovered (Jul 27, 1892) by Stephane Javelle (277)
IC 988
Discovered (May 28, 1891) by Stephane Javelle (278)
IC 989
Discovered (May 28, 1891) by Stephane Javelle (279)
IC 990
Discovered (May 31, 1886) by Guillaume Bigourdan (184)
IC 991
Discovered (Jul 23, 1892) by Stephane Javelle (280)
IC 992
Discovered (Jun 8, 1893) by Stephane Javelle (782)
IC 993
Discovered (May 27, 1891) by Stephane Javelle (281)
IC 994
Discovered (May 27, 1891) by Stephane Javelle (282)
IC 995
Discovered (Jul 2, 1888) by Lewis Swift (VII-42)
IC 996
Discovered (Jul 3, 1888) by Lewis Swift (VII-43)
IC 997 (= IC 4401)
Discovered (May 16, 1892) by Lewis Swift (X-4) (and later listed as IC 997)
Discovered (Sep 16, 1896) by Lewis Swift (and later listed as IC 4401)
IC 998
Discovered (May 16, 1892) by Lewis Swift (X-5)
IC 999
Discovered (Jun 23, 1892) by Stephane Javelle (283)
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