QuickLinks:
6150, 6151, 6152, 6153, 6154, 6155, 6156, 6157, 6158, 6159, 6160, 6161, 6162, 6163, 6164, 6165, 6166,
6167, 6168, 6169, 6170, 6171, 6172, 6173, 6174, 6175, 6176, 6177, 6178, 6179, 6180, 6181, 6182, 6183,
6184, 6185, 6186, 6187, 6188, 6189, 6190, 6191, 6192, 6193, 6194, 6195, 6196, 6197, 6198, 6199
Page last updated April 9, 2012
WORKING 6151: Add basic pix/tags
NGC 6150 (= PGC 58105)
Discovered (Mar 18, 1787) by William Herschel
A 14th-magnitude elliptical galaxy (type E?) in Hercules (RA 16 25 49.9, Dec +40 29 20)
Based on a recessional velocity of 8720 km/sec, NGC 6150 is about 405 million light years away. Given that and its apparent size of 1.3 by 0.65 arcmin, it is about 150 thousand light years across. |
Above, a 2.4 arcmin wide closeup of NGC 6150; also shown is PGC 58100, or "NGC 6150B"
Below, a 12 arcmin wide region centered on the galaxy
PGC 58100 (= NGC 6150B)
A 14th-magnitude spiral galaxy (type Sab?) in Hercules (RA 16 25 44.4, Dec +40 28 32)
Based on a recessional velocity of 9535 km/sec, PGC 58100 is about 445 million light years away. Given that and its apparent size of 0.7 by 0.3 arcmin, it is about 90 thousand light years across. Although peculiar (non-Hubble expansion) velocities could be responsible for the difference in recessional velocity between PGC 58100 and NGC 6150 (which see for images of the pair), their lack of any obvious gravitational interaction suggests that the smaller galaxy truly is a background object, and not physically related to its apparent companion. |
NGC 6151
Discovered (Jun 29, 1835) by John Herschel
A group of stars in Apus (RA 16 38 24.1, Dec -73 15 07)
Apparent size 0.5 arcmin
NGC 6152 (= OCL 961)
Discovered (Jul 8, 1834) by John Herschel
An 8th-magnitude open cluster (type II2m) in Norma (RA 16 32 45.0, Dec -52 38 36)
Apparent size 25 arcmin
NGC 6153
Discovered (May 27, 1883) by Ralph Copeland
An 11th-magnitude planetary nebula in Scorpius (RA 16 31 30.6, Dec -40 15 11)
Apparent size 0.4 arcmin
NGC 6154 (= PGC 58095)
Discovered (May 15, 1787) by William Herschel
A 13th-magnitude spiral galaxy (type SBa) in Hercules (RA 16 25 30.6, Dec +49 50 25)
The second IC lists a corrected RA (per Bigourdan) of 16 21 42. Apparent size 2.1 by 2.0 arcmin.
NGC 6155 (= PGC 58115)
Discovered (May 12, 1787) by William Herschel
A 12th-magnitude spiral galaxy (type Sc) in Hercules (RA 16 26 08.3, Dec +48 22 03)
The second IC lists a corrected RA (per Bigourdan) of 16 22 11. Apparent size 1.3 by 0.9 arcmin.
NGC 6156 (= PGC 58536)
Discovered (Apr 24, 1835) by John Herschel
A 12th-magnitude spiral galaxy (type SBc) in Triangulum Australe (RA 16 34 52.6, Dec -60 37 09)
Apparent size 1.6 by 1.4 arcmin
NGC 6157 (= PGC 58101)
Discovered (Jun 28, 1886) by Lewis Swift (4-34)
A 15th-magnitude lenticular galaxy (type E/S0) in Draco (RA 16 25 48.3, Dec +55 21 40)
Apparent size 0.6 by 0.5 arcmin
NGC 6158 (= PGC 58198)
Discovered (Mar 17, 1787) by William Herschel
A 14th-magnitude lenticular galaxy (type E/S0) in Hercules (RA 16 27 40.9, Dec +39 23 00)
Apparent size 0.9 by 0.6 arcmin
NGC 6159 (= PGC 58185)
Discovered (Jul 20, 1879) by Édouard Stephan (10-30)
A 14th-magnitude lenticular galaxy (type E/S0) in Hercules (RA 16 27 25.1, Dec +42 40 49)
Apparent size 1.4 by 1.0 arcmin
NGC 6160 (= PGC 58199)
Discovered (Mar 18, 1787) by William Herschel
A 13th-magnitude elliptical galaxy (type E2) in Hercules (RA 16 27 41.1, Dec +40 55 39)
Apparent size 1.8 by 1.5 arcmin
NGC 6161 (= PGC 58235)
Discovered (Jun 30, 1870) by Édouard Stephan (1-4)
A 15th-magnitude spiral galaxy (type Sc) in Hercules (RA 16 28 20.6, Dec +32 48 37)
Apparent size 0.9 by 0.3 arcmin
NGC 6162 (= PGC 58238)
Discovered (Jun 30, 1870) by Édouard Stephan (1-5)
A 14th-magnitude lenticular galaxy (type S0) in Hercules (RA 16 28 22.3, Dec +32 50 59)
Apparent size 0.9 by 0.7 arcmin
NGC 6163 (= PGC 58250)
Discovered (Jun 30, 1870) by Édouard Stephan (1-6)
A 14th-magnitude lenticular galaxy (type SB0) in Hercules (RA 16 28 27.8, Dec +32 50 49)
Apparent size 0.6 by 0.3 arcmin
NGC 6164
Discovered (Jul 1, 1834) by John Herschel
An emission nebula in Norma (RA 16 33 41.0, Dec -48 04 46)
Apparent size 1.0 by 0.3 arcmin
NGC 6165
Discovered (Jul 1, 1834) by John Herschel
An emission nebula in Norma (RA 16 34 02.0, Dec -48 09 04)
Apparent size 2.5 by 0.5 arcmin
NGC 6166 (= PGC 58265)
Discovered (May 30, 1791) by William Herschel
A 12th-magnitude elliptical galaxy (type E3) in Hercules (RA 16 28 38.5, Dec +39 33 05)
Apparent size 1.9 by 1.4 arcmin
PGC 58254 (= "NGC 6166A")
Not an NGC object but sometimes called NGC 6166A because of its proximity to NGC 6166
A 15th-magnitude lenticular galaxy (type S0) in Hercules (RA 16 28 31.0, Dec +39 31 16)
Apparent size 0.3 by 0.2 arcmin
PGC 58299 (= "NGC 6166B")
Not an NGC object but sometimes called NGC 6166B because of its proximity to NGC 6166
A 15th-magnitude spiral galaxy (type S?) in Hercules (RA 16 28 53.1, Dec +39 33 39)
Apparent size 0.4 by 0.3 arcmin
PGC 58244 (= "NGC 6166C")
Not an NGC object but sometimes called NGC 6166C because of its proximity to NGC 6166
A 15th-magnitude elliptical galaxy (type E0) in Hercules (RA 16 28 23.2, Dec +39 34 14)
Apparent size 0.4 by 0.4 arcmin
PGC 58262 (= "NGC 6166D")
Not an NGC object but sometimes called NGC 6166D because of its proximity to NGC 6166
A 15th-magnitude lenticular galaxy (type S0) in Hercules (RA 16 28 39.1, Dec +39 31 08)
Apparent size 0.4 by 0.3 arcmin
NGC 6167 (= OCL 971)
Discovered (Jun 26, 1826) by James Dunlop (401)
A 7th-magnitude open cluster (type II3m) in Norma (RA 16 34 34.9, Dec -49 46 19)
Apparent size 7.0 arcmin
NGC 6168 (= PGC 58423)
Discovered (May 21, 1884) by Lewis Swift (1-46)
A 14th-magnitude spiral galaxy (type Sd) in Hercules (RA 16 31 21.3, Dec +20 11 06)
Apparent size 1.4 by 0.3 arcmin
NGC 6169 (= OCL 984)
Discovered (Jun 1, 1834) by John Herschel
A 7th-magnitude open cluster in Norma (RA 16 34 05.0, Dec -44 02 43)
Apparent size 12.0 arcmin
NGC 6170 (= NGC 6176 = PGC 58188)
Discovered (Jul 9, 1886) by Lewis Swift (4-35) (and later listed as NGC 6170)
Discovered (Oct 1, 1886) by Lewis Swift (and later listed as NGC 6176)
A 14th-magnitude lenticular galaxy (type E/S0) in Draco (RA 16 27 36.4, Dec +59 33 47)
Apparent size 0.7 by 0.5 arcmin
Above, a 2.4 arcmin wide closeup of NGC 6170
Below, a 12 arcmin wide region centered on the galaxy
NGC 6171 (= M107 = GCL 44)
Discovered (April, 1782) by Pierre Méchain
Added to Charles Messier's catalog as M107 by Helen Sawyer Hogg in 1947
An 8th-magnitude globular cluster (type X) in Ophiuchus (RA 16 32 31.9, Dec -13 03 11)
About 50 light years across, and 10 thousand light years away from the Sun. Apparent size 13 arcmin.
Above, a 12 arcmin wide region centered on NGC 6171
(Image Credits: Jim Misti, Misti Mountain Observatory; used by permission)
Below, a HST closeup of the core of the cluster (Image Credits: HST/NASA/ScSTI, from Wikimedia Commons)
Below, a 24 arcmin wide region centered on M107 (Image Credits: ESO)
NGC 6172 (= IC 1213 = PGC 57937)
Discovered (Jun 21, 1884) by Édouard Stephan (13b-86) (and later listed as NGC 6172)
Discovered (Apr 19, 1890) by Lewis Swift (and later listed as IC 1213)
A 13th-magnitude elliptical galaxy (type E0) in Serpens (RA 16 22 10.2, Dec -01 30 51)
Apparent size 0.8 by 0.8 arcmin
NGC 6173 (= PGC 58348)
Discovered (Mar 18, 1787) by William Herschel
A 12th-magnitude elliptical galaxy (type E3) in Hercules (RA 16 29 45.0, Dec +40 48 40)
Apparent size 1.9 by 1.4 arcmin
NGC 6174 (= PGC 58334)
Discovered (Mar 26, 1849) by George Stoney
A 14th-magnitude lenticular galaxy (type E/S0) in Hercules (RA 16 29 23.8, Dec +40 52 30)
Apparent size 0.6 by 0.6 arcmin
NGC 6175 (= PGC 58362)
Discovered (Mar 18, 1787) by William Herschel
A pair of galaxies in Hercules
#1: A 14th-magnitude lenticular galaxy (type S0) at RA 16 29 57.4, Dec +40 37 49
#2: A 14th-magnitude elliptical galaxy (type E0) at RA 16 29 58.0, Dec +40 37 41
#1: Apparent size 1.3 by 0.8 arcmin. #2: Apparent size 0.6 by 0.6 arcmin.
Above, a 2.4 arcmin wide closeup of NGC 6175
Below, a 12 arcmin wide region centered on the galaxy pair
NGC 6176 (= NGC 6170 = PGC 58188)
Discovered (Jul 9, 1886) by Lewis Swift (and later listed as NGC 6170)
Discovered (Oct 1, 1886) by Lewis Swift (5-70) (and later listed as NGC 6176)
A 14th-magnitude lenticular galaxy (type E/S0) in Draco (RA 16 27 36.4, Dec +59 33 47)
(This entry will only contain historical information; for physical data and images see NGC 6170)
NGC 6177 (= PGC 58390)
Discovered (May 28, 1791) by William Herschel
A 14th-magnitude spiral galaxy (type SBb) in Hercules (RA 16 30 38.8, Dec +35 03 20)
Apparent size 1.7 by 1.2 arcmin
NGC 6178 (= OCL 980)
Discovered (Jul 27, 1834) by John Herschel
A 7th-magnitude open cluster (type I3p) in Scorpius (RA 16 35 50.8, Dec -45 38 48)
Apparent size 5.0 arcmin
NGC 6179 (= PGC 58401)
Discovered (Apr 19, 1855) by R. J. Mitchell
A 15th-magnitude compact galaxy (type C) in Hercules (RA 16 30 46.9, Dec +35 06 10)
Apparent size 0.4 by 0.4 arcmin
NGC 6180 (= PGC 58386)
Discovered (Jun 23, 1876) by Édouard Stephan (7-8)
A 14th-magnitude elliptical galaxy (type E?) in Hercules (RA 16 30 33.9, Dec +40 32 23)
Apparent size 0.9 by 0.6 arcmin
NGC 6181 (= PGC 58470)
Discovered (Apr 28, 1788) by William Herschel
A 12th-magnitude spiral galaxy (type SBc) in Hercules (RA 16 32 20.7, Dec +19 49 32)
Apparent size 2.5 by 1.1 arcmin
NGC 6182 (= PGC 58338)
Discovered (Apr 24, 1789) by William Herschel
A 14th-magnitude spiral galaxy (type Sa) in Draco (RA 16 29 33.9, Dec +55 31 04)
Apparent size 1.4 by 0.4 arcmin
NGC 6183 (= PGC 58785)
Discovered (Apr 25, 1835) by John Herschel
A 12th-magnitude spiral galaxy (type Sa) in Triangulum Australe (RA 16 41 41.8, Dec -69 22 21)
Apparent size 1.8 by 0.6 arcmin
NGC 6184 (= PGC 58432)
Discovered (Jun 23, 1876) by Édouard Stephan (7-9)
A 14th-magnitude spiral galaxy (type Sb) in Hercules (RA 16 31 34.4, Dec +40 33 56)
Apparent size 0.8 by 0.5 arcmin
NGC 6185 (= PGC 58493)
Discovered (Apr 27, 1827) by John Herschel
A 13th-magnitude spiral galaxy (type Sa) in Hercules (RA 16 33 17.8, Dec +35 20 32)
Apparent size 1.2 by 0.9 arcmin
NGC 6186 (= PGC 58523)
Discovered (Apr 28, 1788) by William Herschel
A 13th-magnitude spiral galaxy (type SBa) in Hercules (RA 16 34 25.4, Dec +21 32 29)
Apparent size 1.5 by 1.2 arcmin
NGC 6187 (= PGC 58429)
Discovered (Oct 5, 1883) by Charles Young
A 14th-magnitude spiral galaxy (type S) in Draco (RA 16 31 36.6, Dec +57 42 26)
Apparent size 0.4 by 0.3 arcmin
NGC 6188
Discovered (Apr 15, 1836) by John Herschel
An emission and reflection nebula in Ara (RA 16 40 05.0, Dec -48 39 42)
NGC 6188 is a 20 by 12 arcmin wide emission and reflection nebula to the west (right, in the images below) of a very young association of stars, NGC 6193, which is heating and lighting up the eastern (left) side of the nebula. The nebula (and cluster) lies about 4000 light years away, so the 30 arcmin wide image directly below covers a region about 35 light years across. As can be seen in the wide-field views of NGC 6188 and 6193, most of the clouds of gas and dust in the region are relatively cool and dark. The region being fiercely heated and sculpted by the radiation from the nearby cluster of stars is also referred to as RCW 108. |
Above, a half-degree wide composite showing the region centered on NGC 6188; also shown, off to the east (or left) is the open cluster NGC 6193, which is lighting up the region (Color overlay credit: ESO)
Below, a closeup of the central portion of NGC 6188 (credit as for the image above)
NGC 6189 (= NGC 6191 = PGC 58440)
Discovered (Aug 3, 1885) by Lewis Swift (2-41) (and later listed as NGC 6189)
Discovered (Jul 6, 1886) by Lewis Swift (and later listed as NGC 6191)
A 13th-magnitude spiral galaxy (type SBc) in Draco (RA 16 31 40.7, Dec +59 37 36)
Apparent size 1.9 by 0.9 arcmin
NGC 6190 (= PGC 58458)
Discovered (Oct 30, 1883) by Lewis Swift (2-42)
A 13th-magnitude spiral galaxy (type Sc) in Draco (RA 16 32 06.4, Dec +58 26 21)
Apparent size 1.4 by 1.3 arcmin
NGC 6191 (= NGC 6189 = PGC 58440)
Discovered (Aug 3, 1885) by Lewis Swift (and later listed as NGC 6189)
Discovered (Jul 6, 1886) by Lewis Swift (4-36) (and later listed as NGC 6191)
A 13th-magnitude spiral galaxy (type SBc) in Draco (RA 16 31 40.7, Dec +59 37 36)
(this entry will contain only historical information; for physical data and images, refer to NGC 6189)
NGC 6192 (= OCL 988)
Discovered (May 13, 1826) by James Dunlop (483)
A 9th-magnitude open cluster (type I2p) in Scorpius (RA 16 40 20.8, Dec -43 21 55)
Apparent size 9.0 arcmin
NGC 6193 (= OCL 975)
Discovered (May 14, 1826) by James Dunlop (413)
A 5th-magnitude open cluster (type II3p) in Ara (RA 16 41 20.3, Dec -48 45 48)
An OB1 association (a group of extremely young stars, at most a few million years old, which therefore includes some extremely hot, bright stars) that is heating and lighting up the gas and dust surrounding it, especially the emission and reflection nebula to the west (right, in the images below) of it listed as NGC 6188. Most of the radiation heating, sculpting, and compressing the nearby clouds of gas and dust comes from the bright object near the center of the cluster, which is actually a binary star consisting of two extremely massive, extremely bright O-type stars. The cluster and nebula lie about 4000 light years away, so the 12 arcmin image below covers a region about 14 light years across, and the 30 arcmin image covers a region about 35 light years across. As can be seen in the wide-field views of NGC 6193 and 6188, most of the clouds of gas and dust in the region are relatively cool and dark. The region being fiercely heated and sculpted by the radiation from the nearby cluster of stars is also referred to as RCW 108. |
Above, a 12 arcmin wide region centered on NGC 6193 (Image credits, above and below, as for NGC 6188)
Below, a half-degree wide region centered on the cluster; see NGC 6188 for other views of the region
NGC 6194 (= PGC 58598)
Discovered (Apr 27, 1827) by John Herschel
A 14th-magnitude lenticular galaxy (type E/S0) in Hercules (RA 16 36 37.0, Dec +36 12 02)
The first IC adds "Bigourdan 209 assumed identical with this, as the places and descriptions agree perfectly".
Apparent size 1.0 by 0.8 arcmin.
NGC 6195 (= PGC 58596)
Discovered (May 30, 1791) by William Herschel
A 13th-magnitude spiral galaxy (type Sb) in Hercules (RA 16 36 32.6, Dec +39 01 42)
Apparent size 1.5 by 1.1 arcmin
NGC 6196 (= IC 4615 = PGC 58644)
Discovered (Jul 9, 1864) by Albert Marth (311) (and later listed as NGC 6196)
Discovered (Aug 28, 1886) by Guillaume Bigourdan (and later listed as IC 4615)
A 13th-magnitude lenticular galaxy (type E/S0) in Hercules (RA 16 37 53.8, Dc +36 04 23)
Apparent size 2.0 by 1.2 arcmin
NGC 6197 (= IC 4616 = PGC 58655)
Discovered (Jul 9, 1864) by Albert Marth (312) (and later listed as NGC 6197)
Discovered (Aug 28, 1886) by Guillaume Bigourdan (and later listed as IC 4616)
A 15th-magnitude lenticular galaxy (type SB0/a) in Hercules (RA 16 37 59.8, Dec +35 59 45)
Apparent size 1.3 by 0.5 arcmin
NGC 6198 (= PGC 58554)
Discovered (Jun 28, 1886) by Lewis Swift (4-37)
A 14th-magnitude elliptical galaxy (type E3) in Draco (RA 16 35 30.6, Dec +57 29 14)
Apparent size 1.0 by 0.7 arcmin
Above, a 2.4 arcmin wide closeup of NGC 6198
Below, a 12 arcmin wide region centered on the galaxy
NGC 6199
Recorded (Jul 9, 1864) by Albert Marth (313)
A 15th-magnitude star in Hercules (RA 16 39 28.9, Dec +36 03 34)
Above, a 12 arcmin wide region centered on the star listed as NGC 6199
|
