| NGC 2935 | |
|---|---|
 | |
| Observation data (J2000 epoch) | |
| Constellation | Hydra |
| Right ascension | 09h 36m 45s |
| Declination | -21° 07′41″ |
| Surface brightness | 23.9 mag/arcsec^2 |
| Characteristics | |
| Type | SAb |
| Other designations | |
| PGC 27351,
ESO 565-23, UGCA 169, MCG -3-25-11, IRAS 09344-2054 | |
NGC 2935 is a large intermediate spiral galaxy located in the constellation Hydra. Its speed relative to the cosmic microwave background is 2,601 ± 23 km/s, which corresponds to a Hubble distance of 38.4 ± 2.7 Mpc (~125 million ly). NGC 2935 was discovered by German-British astronomer William Herschel in 1786.[1]
NGC 2935 was used by Gérard de Vaucouleurs as a galaxy of morphological type (R2')SAB(s)b in his galaxy atlas. The luminosity class of NGC 2935 is II and it has a broad HI line. In addition, it is a star-forming burst galaxy.[2]
To date, 29 studies and measurements based on redshift give a distance of 27.890 ± 3.962 Mpc (~91 million ly),[3] which is outside the Hubble distance values. Note that it is with the average value of independent measurements, when they exist, that the NASA/IPAC database calculates the diameter of a galaxy and that consequently the diameter of NGC 2935 could be approximately 78, 1 kpc (~255,000 ly) if we used the Hubble distance to calculate it.[4]
Observations from the Hubble Space Telescope have concluded that a star-forming disk is present around the core of NGC 2935. The size of its semi-major axis is estimated at 530 pc (~1730 light years) at the estimated distance of this galaxy.[5]
Two supernovas have been discovered in NGC 2935: SN 1975F and SN 1996Z.[6]
This supernova was discovered on June 11, 1975, by Mr. J. R. Dunlap of the Corralitos Observatory at Northwestern University. The type of this supernova has not been determined.[6]
This supernova was discovered on May 16, 1996, by Wayne Johnson.[7] This supernova was type Ia.[8]
NGC 2935 is part of a small group of three galaxies named after it. The other two galaxies in the NGC 2935 group are NGC 2983 and NGC 2986.[9]
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