HD 37320 (HR 1920, HIP 26487) is a star located in the constellation Orion. [a] It is an evolved blue giant star, based on its spectral type of B8III. [1] The distance to HD 37320 is calculated at 285.5 parsecs (931 light-years), based on a parallax from Gaia EDR3. [2] The apparent magnitude of the star is 5.852, [1] which is above the limiting magnitude for naked-eye vision (6.5m), making it faintly visible to the naked eye. [3]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Orion [a] |
| Right ascension | 05h 38m 01.12s [1] |
| Declination | +07° 32′ 29.1″ [1] |
| Apparent magnitude (V) | 5.852±0.009 [1] |
| Characteristics | |
| Evolutionary stage | Blue giant |
| Spectral type | B7III [1] |
| Apparent magnitude (U) | 5.44 [1] |
| Apparent magnitude (B) | 5.788 [1] |
| Apparent magnitude (G) | 5.844 [1] |
| Apparent magnitude (J) | 5.933 [1] |
| Apparent magnitude (H) | 5.997 [1] |
| Apparent magnitude (K) | 5.964 [1] |
| Astrometry | |
| Radial velocity (Rv) | 20.1±1 [4] km/s |
| Proper motion (μ) |
RA: 10.602
mas/
yr
[4] Dec.: -15.499 mas/ yr [4] |
| Parallax (π) | 3.5025 ± 0.0568 mas [2] |
| Distance | 930 ± 20
ly (286 ± 5 pc) |
| Absolute magnitude (MV) | -1.43 [5] |
| Details | |
| Mass | 5.644±0.282 [6] M☉ |
| Radius | 4.696 [b] R☉ |
| Luminosity | 218.78 [8] L☉ |
| Temperature | 12,303 [8] K |
| Rotational velocity (v sin i) | 25 [9] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
Characteristics
It is an evolved blue giant star with a spectral type of B8III. [1] It radiates about 219 times the solar luminosity by its photosphere at an effective temperature of 12,300 K. [8] Its uniform disk angular diameter is measured at 0.153 milliarcseconds. [7] At the estimated distance by Gaia EDR3, it yields a physical size of 4.696 R☉. The star has a mass of 5.644 M☉ [6] and rotates under its own axis at a speed of 25 km/s. [9]
HD 37320 is located within the constellation Orion, based on its astronomical coordinates. [a] The distance to the star is 285.5 parsecs (931 light-years), based on a parallax of 3.5025 mas from Gaia EDR3. [2] The apparent magnitude of the star, i.e. its brightness as seen from Earth, is of 5.852m, [1] which is above the limiting magnitude for naked-eye vision, generally defined as 6.5m, making it faintly visible to the naked eye. [3] The absolute magnitude of HD 37320, i.e. its brightness if it was seen at 10 parsecs (32.6 ly), is -1.43. [5] It is moving away from Earth at a velocity of 20.1 km/s. [4]
HD 37320 is the Henry Draper Catalogue designation for this star. Other designations include HR 1920 from the Bright Star Catalogue, HIP 26487 from the Hipparcos Catalogue and BD+07 953 from the Bonner Durchmusterung catalogue. [1]
Notes
References
- ^ a b c d e f g h i j k l m n o p "HD 37320". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2024-05-05.
- ^ a b c d Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv: 2012.01533. Bibcode: 2021A&A...649A...1G. doi: 10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi: 10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
- ^ a b "University Lowbrow Astronomers Naked Eye Observer's Guide". websites.umich.edu. Retrieved 2024-05-05.
- ^ a b c Brandt, Timothy D. (2021-06-01). "The Hipparcos-Gaia Catalog of Accelerations: Gaia EDR3 Edition". The Astrophysical Journal Supplement Series. 254 (2): 42. arXiv: 2105.11662. Bibcode: 2021ApJS..254...42B. doi: 10.3847/1538-4365/abf93c. ISSN 0067-0049. Data about this star is available here at VizieR.
- ^ a b "HIP-26487 (Star)". In-the-sky. Retrieved 2024-05-05.
- ^ a b Kervella, Pierre; Arenou, Frédéric; Mignard, François; Thévenin, Frédéric (2019-03-01). "Stellar and substellar companions of nearby stars from Gaia DR2. Binarity from proper motion anomaly". Astronomy and Astrophysics. 623: A72. arXiv: 1811.08902. Bibcode: 2019A&A...623A..72K. doi: 10.1051/0004-6361/201834371. ISSN 0004-6361. Data about the star is available here at VizieR.
- ^ a b Challouf, M.; Nardetto, N.; Mourard, D.; Graczyk, D.; Aroui, H.; Chesneau, O.; Delaa, O.; Pietrzyński, G.; Gieren, W.; Ligi, R.; Meilland, A.; Perraut, K.; Tallon-Bosc, I.; McAlister, H.; Brummelaar, T. ten (2014-10-01). "Improving the surface brightness-color relation for early-type stars using optical interferometry". Astronomy & Astrophysics. 570: A104. arXiv: 1409.1351. Bibcode: 2014A&A...570A.104C. doi: 10.1051/0004-6361/201423772. ISSN 0004-6361.
- ^ a b c Simón-Díaz, S.; Godart, M.; Castro, N.; Herrero, A.; Aerts, C.; Puls, J.; Telting, J.; Grassitelli, L. (2017-01-01). "The IACOB project . III. New observational clues to understand macroturbulent broadening in massive O- and B-type stars". Astronomy and Astrophysics. 597: A22. arXiv: 1608.05508. Bibcode: 2017A&A...597A..22S. doi: 10.1051/0004-6361/201628541. ISSN 0004-6361. Data about the star is available here at VizieR.
- ^ a b Abt, Helmut A.; Levato, Hugo; Grosso, Monica (2002-07-01). "Rotational Velocities of B Stars". The Astrophysical Journal. 573 (1): 359–365. Bibcode: 2002ApJ...573..359A. doi: 10.1086/340590. ISSN 0004-637X. Available here in VizieR.
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HD 37320 (HR 1920, HIP 26487) is a star located in the constellation Orion. [a] It is an evolved blue giant star, based on its spectral type of B8III. [1] The distance to HD 37320 is calculated at 285.5 parsecs (931 light-years), based on a parallax from Gaia EDR3. [2] The apparent magnitude of the star is 5.852, [1] which is above the limiting magnitude for naked-eye vision (6.5m), making it faintly visible to the naked eye. [3]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Orion [a] |
| Right ascension | 05h 38m 01.12s [1] |
| Declination | +07° 32′ 29.1″ [1] |
| Apparent magnitude (V) | 5.852±0.009 [1] |
| Characteristics | |
| Evolutionary stage | Blue giant |
| Spectral type | B7III [1] |
| Apparent magnitude (U) | 5.44 [1] |
| Apparent magnitude (B) | 5.788 [1] |
| Apparent magnitude (G) | 5.844 [1] |
| Apparent magnitude (J) | 5.933 [1] |
| Apparent magnitude (H) | 5.997 [1] |
| Apparent magnitude (K) | 5.964 [1] |
| Astrometry | |
| Radial velocity (Rv) | 20.1±1 [4] km/s |
| Proper motion (μ) |
RA: 10.602
mas/
yr
[4] Dec.: -15.499 mas/ yr [4] |
| Parallax (π) | 3.5025 ± 0.0568 mas [2] |
| Distance | 930 ± 20
ly (286 ± 5 pc) |
| Absolute magnitude (MV) | -1.43 [5] |
| Details | |
| Mass | 5.644±0.282 [6] M☉ |
| Radius | 4.696 [b] R☉ |
| Luminosity | 218.78 [8] L☉ |
| Temperature | 12,303 [8] K |
| Rotational velocity (v sin i) | 25 [9] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
Characteristics
It is an evolved blue giant star with a spectral type of B8III. [1] It radiates about 219 times the solar luminosity by its photosphere at an effective temperature of 12,300 K. [8] Its uniform disk angular diameter is measured at 0.153 milliarcseconds. [7] At the estimated distance by Gaia EDR3, it yields a physical size of 4.696 R☉. The star has a mass of 5.644 M☉ [6] and rotates under its own axis at a speed of 25 km/s. [9]
HD 37320 is located within the constellation Orion, based on its astronomical coordinates. [a] The distance to the star is 285.5 parsecs (931 light-years), based on a parallax of 3.5025 mas from Gaia EDR3. [2] The apparent magnitude of the star, i.e. its brightness as seen from Earth, is of 5.852m, [1] which is above the limiting magnitude for naked-eye vision, generally defined as 6.5m, making it faintly visible to the naked eye. [3] The absolute magnitude of HD 37320, i.e. its brightness if it was seen at 10 parsecs (32.6 ly), is -1.43. [5] It is moving away from Earth at a velocity of 20.1 km/s. [4]
HD 37320 is the Henry Draper Catalogue designation for this star. Other designations include HR 1920 from the Bright Star Catalogue, HIP 26487 from the Hipparcos Catalogue and BD+07 953 from the Bonner Durchmusterung catalogue. [1]
Notes
References
- ^ a b c d e f g h i j k l m n o p "HD 37320". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2024-05-05.
- ^ a b c d Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv: 2012.01533. Bibcode: 2021A&A...649A...1G. doi: 10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi: 10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
- ^ a b "University Lowbrow Astronomers Naked Eye Observer's Guide". websites.umich.edu. Retrieved 2024-05-05.
- ^ a b c Brandt, Timothy D. (2021-06-01). "The Hipparcos-Gaia Catalog of Accelerations: Gaia EDR3 Edition". The Astrophysical Journal Supplement Series. 254 (2): 42. arXiv: 2105.11662. Bibcode: 2021ApJS..254...42B. doi: 10.3847/1538-4365/abf93c. ISSN 0067-0049. Data about this star is available here at VizieR.
- ^ a b "HIP-26487 (Star)". In-the-sky. Retrieved 2024-05-05.
- ^ a b Kervella, Pierre; Arenou, Frédéric; Mignard, François; Thévenin, Frédéric (2019-03-01). "Stellar and substellar companions of nearby stars from Gaia DR2. Binarity from proper motion anomaly". Astronomy and Astrophysics. 623: A72. arXiv: 1811.08902. Bibcode: 2019A&A...623A..72K. doi: 10.1051/0004-6361/201834371. ISSN 0004-6361. Data about the star is available here at VizieR.
- ^ a b Challouf, M.; Nardetto, N.; Mourard, D.; Graczyk, D.; Aroui, H.; Chesneau, O.; Delaa, O.; Pietrzyński, G.; Gieren, W.; Ligi, R.; Meilland, A.; Perraut, K.; Tallon-Bosc, I.; McAlister, H.; Brummelaar, T. ten (2014-10-01). "Improving the surface brightness-color relation for early-type stars using optical interferometry". Astronomy & Astrophysics. 570: A104. arXiv: 1409.1351. Bibcode: 2014A&A...570A.104C. doi: 10.1051/0004-6361/201423772. ISSN 0004-6361.
- ^ a b c Simón-Díaz, S.; Godart, M.; Castro, N.; Herrero, A.; Aerts, C.; Puls, J.; Telting, J.; Grassitelli, L. (2017-01-01). "The IACOB project . III. New observational clues to understand macroturbulent broadening in massive O- and B-type stars". Astronomy and Astrophysics. 597: A22. arXiv: 1608.05508. Bibcode: 2017A&A...597A..22S. doi: 10.1051/0004-6361/201628541. ISSN 0004-6361. Data about the star is available here at VizieR.
- ^ a b Abt, Helmut A.; Levato, Hugo; Grosso, Monica (2002-07-01). "Rotational Velocities of B Stars". The Astrophysical Journal. 573 (1): 359–365. Bibcode: 2002ApJ...573..359A. doi: 10.1086/340590. ISSN 0004-637X. Available here in VizieR.
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Star clusters |
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| Nebulae |
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| Galaxies |
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