Astronomy:HD 182475
From HandWiki
Short description: Star in the constellation Aquila
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Aquila |
| Right ascension | 19h 25m 01.53339s[2] |
| Declination | −04° 53′ 04.3738″[2] |
| Apparent magnitude (V) | 6.51[3] |
| Characteristics | |
| Spectral type | A9V[4] |
| U−B color index | +0.09[3] |
| B−V color index | +0.33[3] |
| Variable type | δ Sct[5] |
| Astrometry | |
| Proper motion (μ) | RA: 36.65[2] mas/yr Dec.: 2.67[2] mas/yr |
| Parallax (π) | 9.25 ± 1.32[2] mas |
| Distance | approx. 350 ly (approx. 110 pc) |
| Details | |
| Luminosity | 23[6] L☉ |
| Temperature | 6,907[6] K |
| Rotational velocity (v sin i) | 141[4] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 182475 is a Delta Scuti variable[5] star in the equatorial constellation of Aquila. Its apparent magnitude is 6.5, making it barely visible to the naked eye under ideal observing conditions.[3]
Gerald Hildebrandt discovered the star is a variable star in 1991, and reported the discovery in 1992.[7] It was given its variable star designation, V1691 Aquarii, in 2006.[8]
References
- ↑ Poretti, E.; Garrido, R.; Amado, P. J.; Uytterhoeven, K.; Handler, G.; Alonso, R.; Martín, S.; Aerts, C. et al. (April 2003). "Preparing the COROT space mission: Incidence and characterisation of pulsation in the lower instability strip". Astronomy & Astrophysics 406: 203–211. doi:10.1051/0004-6361:20030711. Bibcode: 2003A&A...406..203P. https://www.aanda.org/articles/aa/full/2003/28/aa3642/aa3642.html. Retrieved 23 October 2021.
- ↑ 2.0 2.1 2.2 2.3 2.4 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. doi:10.1051/0004-6361:20078357. Bibcode: 2007A&A...474..653V.
- ↑ 3.0 3.1 3.2 3.3 Cousins, A. W. J. (1964), "Photometric Data for Stars in the Equatorial Zone (Seventh List)", Monthly Notes of the Astronomical Society of Southern Africa 23: 175, Bibcode: 1964MNSSA..23..175C
- ↑ 4.0 4.1 Royer, F.; Zorec, J.; Gómez, A. E. (February 2007), "Rotational velocities of A-type stars. III. Velocity distributions", Astronomy and Astrophysics 463 (2): 671–682, doi:10.1051/0004-6361:20065224, Bibcode: 2007A&A...463..671R
- ↑ 5.0 5.1 Rodríguez, E.; López-González, M. J.; López de Coca, P. (June 2000), "A revised catalogue of δ Sct stars", Astronomy and Astrophysics Supplement 144 (3): 469–474, doi:10.1051/aas:2000221, Bibcode: 2000A&AS..144..469R
- ↑ 6.0 6.1 McDonald, I. et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society 427 (1): 343–57, doi:10.1111/j.1365-2966.2012.21873.x, Bibcode: 2012MNRAS.427..343M
- ↑ Hildebrandt, G. (July 1992). "Rapid oscillations of five stars in the spectral range A and F. I". Astronomische Nachrichten 313 (4): 233–241. doi:10.1002/asna.2113130404. Bibcode: 1992AN....313..233H. https://articles.adsabs.harvard.edu/pdf/1992AN....313..233H. Retrieved 22 November 2024.
- ↑ Kazarovets, E. V.; Samus, N. N.; Durlevich, O. V.; Kireeva, N. N.; Pastukhova, E. N. (August 2006). "The 78th Name-List of Variable Stars". Information Bulletin on Variable Stars 5721. Bibcode: 2006IBVS.5721....1K. https://ibvs.konkoly.hu/pub/ibvs/5701/5721.pdf. Retrieved 22 November 2024.
External links
 |  |
