D Puppis, also known as HD 54475, is a B-type star and a pulsating variable in the constellation of Puppis. [1] [2] It has an apparent magnitude of 5.783, [1] which is enough to be visible to the unaided eye. [a] The distance to D Puppis, based on a parallax of 4.2±0.2 mas from the Hipparcos satellite, is 776 light-years. [3] [b]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Puppis [4] [note 1] |
| Right ascension | 07h 07m 07s [1] |
| Declination | −40° 53′ 35.77″ [1] |
| Apparent magnitude (V) | 5.783±0.009 [1] |
| Characteristics | |
| Evolutionary stage | B-type main-sequence star [1] |
| Spectral type | B3V [1] |
| Variable type | Pulsating variable [1] |
| Astrometry | |
| Radial velocity (Rv) | 6±3.2 [1] km/s |
| Proper motion (μ) |
RA: −10.554±0.069
mas/
yr
[1] Dec.: 11.163±0.0689 mas/ yr [1] |
| Parallax (π) | 4.2 ± 0.2 mas [3] |
| Distance | 776.19
ly (238.1 pc) [3] |
| Absolute magnitude (MV) | -0.95 [2] |
| Details | |
| Mass | 6.2±0.1 [5] M☉ |
| Radius | 3.544 [6] [c] R☉ |
| Luminosity | 689.67 [7] L☉ |
| Temperature | 15,723 [7] K |
| Age | 15.8±0.3 [5] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
Characteristics
This is a B-type main-sequence star with a spectral type of B3V. [1] It has 6.2 times the mass of the Sun [5] and 3.54 times the Sun's radius. [6] It radiates 690 times the solar luminosity from its outer atmosphere at a temperature of 15,723 K. [7] Its age is estimated to be of about 15 million years. [5]
The distance to D Puppis is about 776 light-years, based on a parallax of 4.2±0.2 mas from the Hipparcos satellite. [3]
It is mentioned to be a pulsating variable star on SIMBAD, [1] but the American Association of Variable Star Observers does not mention any variable-star type for the star. [4]
Notes
- ^ According to the Bortle scale
- ^ The distance in parsecs is equivalent to .
- ^ Calculated using an angular diameter of 0.1422608 mas and an adopted distance of 231.7 parsecs (756 ly).
References
- ^ a b c d e f g h i j k l m "HD 54475". SIMBAD. Centre de données astronomiques de Strasbourg.
- ^ a b Ford, Dominic. "D-Pup (Star)". In-The-Sky.org. Retrieved 2024-04-15.
- ^ a b c d van Leeuwen, F. (2007-11-01). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv: 0708.1752. Bibcode: 2007A&A...474..653V. doi: 10.1051/0004-6361:20078357. ISSN 0004-6361.
- ^ a b "VSX : Detail for NSV 17352". www.aavso.org. Retrieved 2024-04-19.
- ^ a b c d Tetzlaff, N.; Neuhäuser, R.; Hohle, M. M. (2011-01-01). "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun". Monthly Notices of the Royal Astronomical Society. 410: 190–200. arXiv: 1007.4883. Bibcode: 2011MNRAS.410..190T. doi: 10.1111/j.1365-2966.2010.17434.x. ISSN 0035-8711.
- ^ a b Cruzalèbes, P.; Petrov, R. G.; Robbe-Dubois, S.; Varga, J.; Burtscher, L.; Allouche, F.; Berio, P.; Hofmann, K. -H.; Hron, J.; Jaffe, W.; Lagarde, S.; Lopez, B.; Matter, A.; Meilland, A.; Meisenheimer, K. (2019-12-01). "A catalogue of stellar diameters and fluxes for mid-infrared interferometry". Monthly Notices of the Royal Astronomical Society. 490 (3): 3158–3176. arXiv: 1910.00542. Bibcode: 2019MNRAS.490.3158C. doi: 10.1093/mnras/stz2803. ISSN 0035-8711.
- ^ a b c McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012-11-01). "Fundamental parameters and infrared excesses of Hipparcos stars". Monthly Notices of the Royal Astronomical Society. 427: 343–357. arXiv: 1208.2037. Bibcode: 2012MNRAS.427..343M. doi: 10.1111/j.1365-2966.2012.21873.x. ISSN 0035-8711.
Sources
- Stift, Martin (19 April 1979). "Light Variations of HD 54475". Information Bulletin on Variable Stars (1586). Konkoly Observatory, Budapest: Commission 27 of the IAU.
D Puppis, also known as HD 54475, is a B-type star and a pulsating variable in the constellation of Puppis. [1] [2] It has an apparent magnitude of 5.783, [1] which is enough to be visible to the unaided eye. [a] The distance to D Puppis, based on a parallax of 4.2±0.2 mas from the Hipparcos satellite, is 776 light-years. [3] [b]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Puppis [4] [note 1] |
| Right ascension | 07h 07m 07s [1] |
| Declination | −40° 53′ 35.77″ [1] |
| Apparent magnitude (V) | 5.783±0.009 [1] |
| Characteristics | |
| Evolutionary stage | B-type main-sequence star [1] |
| Spectral type | B3V [1] |
| Variable type | Pulsating variable [1] |
| Astrometry | |
| Radial velocity (Rv) | 6±3.2 [1] km/s |
| Proper motion (μ) |
RA: −10.554±0.069
mas/
yr
[1] Dec.: 11.163±0.0689 mas/ yr [1] |
| Parallax (π) | 4.2 ± 0.2 mas [3] |
| Distance | 776.19
ly (238.1 pc) [3] |
| Absolute magnitude (MV) | -0.95 [2] |
| Details | |
| Mass | 6.2±0.1 [5] M☉ |
| Radius | 3.544 [6] [c] R☉ |
| Luminosity | 689.67 [7] L☉ |
| Temperature | 15,723 [7] K |
| Age | 15.8±0.3 [5] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
Characteristics
This is a B-type main-sequence star with a spectral type of B3V. [1] It has 6.2 times the mass of the Sun [5] and 3.54 times the Sun's radius. [6] It radiates 690 times the solar luminosity from its outer atmosphere at a temperature of 15,723 K. [7] Its age is estimated to be of about 15 million years. [5]
The distance to D Puppis is about 776 light-years, based on a parallax of 4.2±0.2 mas from the Hipparcos satellite. [3]
It is mentioned to be a pulsating variable star on SIMBAD, [1] but the American Association of Variable Star Observers does not mention any variable-star type for the star. [4]
Notes
- ^ According to the Bortle scale
- ^ The distance in parsecs is equivalent to .
- ^ Calculated using an angular diameter of 0.1422608 mas and an adopted distance of 231.7 parsecs (756 ly).
References
- ^ a b c d e f g h i j k l m "HD 54475". SIMBAD. Centre de données astronomiques de Strasbourg.
- ^ a b Ford, Dominic. "D-Pup (Star)". In-The-Sky.org. Retrieved 2024-04-15.
- ^ a b c d van Leeuwen, F. (2007-11-01). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv: 0708.1752. Bibcode: 2007A&A...474..653V. doi: 10.1051/0004-6361:20078357. ISSN 0004-6361.
- ^ a b "VSX : Detail for NSV 17352". www.aavso.org. Retrieved 2024-04-19.
- ^ a b c d Tetzlaff, N.; Neuhäuser, R.; Hohle, M. M. (2011-01-01). "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun". Monthly Notices of the Royal Astronomical Society. 410: 190–200. arXiv: 1007.4883. Bibcode: 2011MNRAS.410..190T. doi: 10.1111/j.1365-2966.2010.17434.x. ISSN 0035-8711.
- ^ a b Cruzalèbes, P.; Petrov, R. G.; Robbe-Dubois, S.; Varga, J.; Burtscher, L.; Allouche, F.; Berio, P.; Hofmann, K. -H.; Hron, J.; Jaffe, W.; Lagarde, S.; Lopez, B.; Matter, A.; Meilland, A.; Meisenheimer, K. (2019-12-01). "A catalogue of stellar diameters and fluxes for mid-infrared interferometry". Monthly Notices of the Royal Astronomical Society. 490 (3): 3158–3176. arXiv: 1910.00542. Bibcode: 2019MNRAS.490.3158C. doi: 10.1093/mnras/stz2803. ISSN 0035-8711.
- ^ a b c McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012-11-01). "Fundamental parameters and infrared excesses of Hipparcos stars". Monthly Notices of the Royal Astronomical Society. 427: 343–357. arXiv: 1208.2037. Bibcode: 2012MNRAS.427..343M. doi: 10.1111/j.1365-2966.2012.21873.x. ISSN 0035-8711.
Sources
- Stift, Martin (19 April 1979). "Light Variations of HD 54475". Information Bulletin on Variable Stars (1586). Konkoly Observatory, Budapest: Commission 27 of the IAU.