Astronomy:LHS 2520
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Corvus |
| Right ascension | 12h 10m 05.60124s[1] |
| Declination | −15° 04′ 16.9613″[1] |
| Apparent magnitude (V) | 12.12 |
| Characteristics | |
| Spectral type | M3.5V[2] |
| Astrometry | |
| Radial velocity (Rv) | 80.47±0.26[1] km/s |
| Proper motion (μ) | RA: −56.437[1] mas/yr Dec.: −712.957[1] mas/yr |
| Parallax (π) | 81.5703 ± 0.0354[1] mas |
| Distance | 39.98 ± 0.02 ly (12.259 ± 0.005 pc) |
| Details | |
| Temperature | 3024[3] K |
| Other designations | |
LHS 2520, GJ 3707, LP 734-32 | |
| Database references | |
| SIMBAD | data |
| ARICNS | data |
LHS 2520, also known as GJ 3707, is a red dwarf star in the constellation Corvus. With an apparent magnitude of 12.12, it is too faint to be seen with the unaided eye. A cool star of spectral type M3.5V,[2] it has a surface temperature of 3024 K.[3] The star was too faint to have had its parallax measured by the Hipparcos satellite. Measurement by Gaia gives its parallax as 81.57±0.04 milliarcseconds, yielding a distance of 40 light-years (12 parsecs).[1]
In popular culture
In Action Comics #14 (January 2013), which was published 7 November 2012, Neil Degrasse Tyson appears in the story, in which he determines that Superman's home planet, Krypton, orbited LHS 2520. Tyson assisted DC Comics in selecting a real-life star that would be an appropriate parent star to Krypton, and picked the star in Corvus,[4][5] and which is the mascot of Superman's high school, the Smallville Crows.[6]
The star also appears as LP 734-32 in the 2014 game, Elite Dangerous.[7]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
- ↑ 2.0 2.1 Jenkins, J. S.; Ramsey, L. W.; Jones, H. R. A.; Pavlenko, Y.; Gallardo, J.; Barnes, J. R.; Pinfield, D. J. (2009). "Rotational Velocities for M Dwarfs". The Astrophysical Journal 704 (2): 975–88. doi:10.1088/0004-637X/704/2/975. Bibcode: 2009ApJ...704..975J.
- ↑ 3.0 3.1 Casagrande, Luca; Flynn, Chris; Bessell, Michael (2008). "M dwarfs: effective temperatures, radii and metallicities". Monthly Notices of the Royal Astronomical Society 389 (2): 585–607. doi:10.1111/j.1365-2966.2008.13573.x. Bibcode: 2008MNRAS.389..585C.
- ↑ Wall, Mike (7 November 2012). "Superman's Home Planet Krypton 'Found'". Scientific American. http://www.scientificamerican.com/article.cfm?id=supermans-home-planet-krypton.
- ↑ Potter, Ned (5 November 2012). "Superman Home: Planet Krypton 'Found' in Sky". abc news website. ABC News Internet Ventures. https://abcnews.go.com/blogs/technology/2012/11/superman-home-planet-krypton-found-in-sky/.
- ↑ Gregorian, Dareh (5 November 2012). "NYER is 'super' smart". New York Post. http://www.nypost.com/p/news/national/nyer_is_super_smart_seMJnvJaXju74neeqHgM2M.
- ↑ u/Mark0sky (8 September 2014). "Soon we should be able to visit Superman home system. Here it is on the Galaxy Map.". https://www.reddit.com/r/EliteDangerous/comments/2fsmpt/soon_we_should_be_able_to_visit_superman_home/.
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