Astronomy:NGC 5605
| NGC 5605 | |
|---|---|
| File:250px NGC 5605 imaged by Pan-STARRS | |
| Observation data (J2000 epoch) | |
| Constellation | Libra |
| Right ascension | 14h 25m 07.57s[1] |
| Declination | −13° 09′ 46.8″[1] |
| Redshift | 0.011294[1] |
| Helio radial velocity | 3386 ± 3 km/s[1] |
| Distance | 174.9 ± 12.3 Mly (53.61 ± 3.76 Mpc)[1] |
| Apparent magnitude (V) | 12.3[1] |
| Characteristics | |
| Type | (R')SAB(rs)c pec?[1] |
| Size | ~119,000 ly (36.50 kpc) (estimated)[1] |
| Apparent size (V) | 1.5′ × 1.3′[1] |
| Other designations | |
| IRAS 14223-1256, MCG-02-37-003, PGC 51492[1] | |
NGC 5605 is an intermediate spiral galaxy in the constellation of Libra. Its velocity with respect to the cosmic microwave background is 3635 ± 18 km/s, which corresponds to a Hubble distance of 174.9 ± 12.3 Mly (53.61 ± 3.76 Mpc).[1] In addition, three non redshift measurements give a farther distance of 194.72 ± 0.68 Mly (59.700 ± 0.208 Mpc).[2] The galaxy was discovered by German-British astronomer William Herschel on 11 May 1784.[3]
The SIMBAD database lists NGC 5605 as a Seyfert II Galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[4]
Unique Trio of Supernovae
NGC 5605 is the only galaxy known where three supernovae were visible at the same time:[5][6]
- SN 2022bn (Type Ib, mag. 18.55) was discovered by ATLAS on 5 January 2022.[7]
- SN 2022ec (Type II, mag. 18.835) was discovered by ATLAS on 7 January 2022.[8]
- SN 2022pv (Type II, mag. 19.165) was discovered by ATLAS on 13 January 2022.[9]
See also
References
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 "Results for object NGC 5605". NASA and Caltech. http://ned.ipac.caltech.edu/byname?objname=NGC+5605.
- ↑ "Distance Results for NGC 5605". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+5605.
- ↑ Seligman, Courtney. "NGC 5605". https://cseligman.com/text/atlas/ngc56.htm#5605.
- ↑ "NGC 5605". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+5605.
- ↑ Bishop, David. "Multiple Supernovae in the same galaxy". https://www.rochesterastronomy.org/snimages/double_sn.html.
- ↑ Plait, Phil (12 April 2022). "For the first time, three supernovae are seen at the same time in a single galaxy!". NBCUniversal. https://www.syfy.com/syfy-wire/bad-astronomy-three-supernovae-at-the-same-time-in-a-single-galaxy.
- ↑ "SN 2022bn". IAU. https://www.wis-tns.org/object/2022bn.
- ↑ "SN 2022ec". IAU. https://www.wis-tns.org/object/2022ec.
- ↑ "SN 2022pv". IAU. https://www.wis-tns.org/object/2022pv.
External links
- NGC 5605 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Coordinates: 
14h 25m 07.57s, −13° 09′ 46.8″
Template:NGC objects:5500-5999
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