| NGC 508 | |
|---|---|
 SDSS view of NGC 508 | |
| Observation data (J2000[1] epoch) | |
| Constellation | Pisces[2] |
| Right ascension | 01h 23m 40.6s[3] |
| Declination | +33° 16′ 49″[3] |
| Redshift | 0.01835 ± 0.00007[1] |
| Heliocentric radial velocity | (5451 ± 21) km/s[1] |
| Distance | 247 Mly[4] |
| Apparent magnitude (V) | 13.1[2] |
| Apparent magnitude (B) | 14.1[2] |
| Characteristics | |
| Type | E[2] |
| Apparent size (V) | 1.1' × 1.1'[2] |
| Other designations | |
| PGC 5099, UGC 939, GC 295, MGC +05-04-045, 2MASS J01234058+3316502 [1][5] | |
NGC 508, also occasionally referred to as PGC 5099 or UGC 939, is an elliptical galaxy in the constellation Pisces.[2] It is located approximately 247 million light-years from the Solar System[4] and was discovered on 12 September 1784 by British astronomer William Herschel.[5] [6]
YouTube Encyclopedic
-
1/5Views:5822 317841586898
-
Live 8 inch Dobsonian EAA with NGC 1032, NGC 1055 and M77 Cetus galaxies // Venus Planetary Imaging
-
The Large Magellanic Cloud Galaxy
-
Stunning NASA Zoom on Distant Nebula Shows Power of Hubble
-
Home of the Stars | Stars with the Lowell Discovery Telescope
-
SVBONY SV605 Microscope-observe the face mask and onion tissue
Transcription
Observation history
Herschel discovered NGC 508 along with NGC 507 and described the objects as "Two. Both eF, S, but unequal.". His observed position was catalogued and is accurate.[6] John Louis Emil Dreyer, creator of the New General Catalogue, described the galaxy as "very faint, small, northern of two", with the other object being NGC 507.[5]
Description
The galaxy has an apparent size of 1.1 × 1.1 arcmins and a recessional velocity of 5525 kilometers per second. It is thought to be a group member with NGC 507, but as there is no evidence of interaction between the objects, the two are not necessarily a physical pair. Although NGC 508 is usually treated as part of Arp 229, the description of the Arp-galaxy only applies to the larger NGC 507. Therefore, the term Arp 229 should only be used as an alternative designation for NGC 507.[5]
See also
References
- ^ a b c d "NGC 508". Retrieved 2017-12-09.
- ^ a b c d e f "Revised NGC Data for NGC 508". spider.seds.org. Retrieved 2017-10-05.
- ^ a b "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-10-05.
- ^ a b An object's distance from Earth can be determined using Hubble's law: v=Ho is Hubble's constant (70±5 (km/s)/Mpc). The relative uncertainty Δd/d divided by the distance is equal to the sum of the relative uncertainties of the velocity and v=Ho
- ^ a b c d "New General Catalog Objects: NGC 500 - 549". cseligman.com. Retrieved 2017-10-16.
- ^ a b "astronomy-mall.com/Adventures.In.Deep.Space/NGC%201-7840%20complete.htm".
External links
- NGC 508 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- SEDS
This page was last edited on 5 June 2023, at 19:25