| Observation data Epoch J2000.0 Equinox J2000.0 ( ICRS) | |
|---|---|
| Constellation | Leo Minor |
| Right ascension | 10h 24m 08.60391s [1] |
| Declination | +33° 43′ 06.7069″ [1] |
| Apparent magnitude (V) | 5.50±0.01 [2] |
| Characteristics | |
| Spectral type | K1 III [3] |
| B−V color index | +1.18 [4] |
| Astrometry | |
| Radial velocity (Rv) | −24.3±0.2 [5] km/s |
| Proper motion (μ) |
RA: −14.460
mas/
yr Dec.: −2.770 mas/ yr |
| Parallax (π) | 6.7945 ± 0.091 mas [1] |
| Distance | 480 ± 6
ly (147 ± 2 pc) |
| Absolute magnitude (MV) | −0.05 [6] |
| Details | |
| Mass | 1.19 [7] M☉ |
| Radius | 22.6 [1] R☉ |
| Luminosity | 207 [1] L☉ |
| Surface gravity (log g) | 1.80 [7] cgs |
| Temperature | 4,580±122 [8] K |
| Metallicity [Fe/H] | −0.04 [1] dex |
| Age | 202 [1] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
28 Leonis Minoris (28 LMi) is a solitary, [10] orange hued star located in the northern constellation Leo Minor, the lesser lion. It has an apparent magnitude of 5.5, [2] allowing it to be faintly visible to the naked eye. Based on parallax measurements from the Gaia satellite, it is estimated to be 480 light years distant. [1] 28 LMi is approaching the Solar System with a heliocentric radial velocity of −24 km/s. [5] At its current distance, the star brightness is diminished by 0.14 magnitudes due to interstellar dust. [11]
This is a population II [12] giant star with a stellar classification of K1 III. [3] It has a comparable mass to the Sun [7] but has expanded to 22.6 times its girth. [1] It radiates 207 times the luminosity of the Sun [1] from its photosphere at an effective temperature of 4,580 K. [8] It has an iron abundance 90% of the Sun's, making it slightly metal deficient. [1]
- ^ a b c d e f g h i j k Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv: 2208.00211. Bibcode: 2023A&A...674A...1G. doi: 10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ a b Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode: 2000A&A...355L..27H. ISSN 0004-6361.
- ^ a b Adams, Walter S.; Joy, Alfred H.; Humason, Milton L.; Brayton, Ada Margaret (April 1935). "The Spectroscopic Absolute Magnitudes and Parallaxes of 4179 Stars". The Astrophysical Journal. 81: 187. Bibcode: 1935ApJ....81..187A. doi: 10.1086/143628. eISSN 1538-4357. ISSN 0004-637X.
- ^ Haggkvist, L.; Oja, T. (1970). "Results of BV photometry 1969-70 (Uppsala refractor)". Private Communication. Bibcode: 1970Priv.........0H.
- ^ a b Famaey, B.; Jorissen, A.; Luri, X.; Mayor, M.; Udry, S.; Dejonghe, H.; Turon, C. (January 2005). "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters". Astronomy and Astrophysics. 430: 165. arXiv: astro-ph/0409579. Bibcode: 2005A&A...430..165F. doi: 10.1051/0004-6361:20041272. S2CID 17804304.
- ^ Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv: 1108.4971. Bibcode: 2012AstL...38..331A. doi: 10.1134/S1063773712050015. eISSN 1562-6873. ISSN 1063-7737. S2CID 119257644.
- ^ a b c Anders, F.; et al. (August 2019). "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18". Astronomy & Astrophysics. 628: A94. arXiv: 1904.11302. Bibcode: 2019A&A...628A..94A. doi: 10.1051/0004-6361/201935765. eISSN 1432-0746. ISSN 0004-6361.
- ^ a b Stassun, Keivan G.; et al. (9 September 2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv: 1905.10694. Bibcode: 2019AJ....158..138S. doi: 10.3847/1538-3881/ab3467. eISSN 1538-3881. hdl: 1721.1/124721. S2CID 166227927.
- ^ "28 LMi". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved November 18, 2022.
- ^ Eggleton, P. P.; Tokovinin, A. A. (11 September 2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869–879. arXiv: 0806.2878. Bibcode: 2008MNRAS.389..869E. doi: 10.1111/j.1365-2966.2008.13596.x. eISSN 1365-2966. ISSN 0035-8711.
- ^ Gontcharov, George A.; Mosenkov, Aleksandr V. (28 September 2017). "Verifying reddening and extinction for Gaia DR1 TGAS main sequence stars". Monthly Notices of the Royal Astronomical Society. 472 (4): 3805–3820. arXiv: 1709.01160. Bibcode: 2017MNRAS.472.3805G. doi: 10.1093/mnras/stx2219. eISSN 1365-2966. ISSN 0035-8711.
- ^ Bartkevicius, A.; Lazauskaite, R. (1 January 1997). "Classification of Population II Stars in the Vilnius Photometric System. II. Results". Open Astronomy. 6 (4): 499. Bibcode: 1997BaltA...6..499B. doi: 10.1515/astro-1997-0402. eISSN 2543-6376.
| Observation data Epoch J2000.0 Equinox J2000.0 ( ICRS) | |
|---|---|
| Constellation | Leo Minor |
| Right ascension | 10h 24m 08.60391s [1] |
| Declination | +33° 43′ 06.7069″ [1] |
| Apparent magnitude (V) | 5.50±0.01 [2] |
| Characteristics | |
| Spectral type | K1 III [3] |
| B−V color index | +1.18 [4] |
| Astrometry | |
| Radial velocity (Rv) | −24.3±0.2 [5] km/s |
| Proper motion (μ) |
RA: −14.460
mas/
yr Dec.: −2.770 mas/ yr |
| Parallax (π) | 6.7945 ± 0.091 mas [1] |
| Distance | 480 ± 6
ly (147 ± 2 pc) |
| Absolute magnitude (MV) | −0.05 [6] |
| Details | |
| Mass | 1.19 [7] M☉ |
| Radius | 22.6 [1] R☉ |
| Luminosity | 207 [1] L☉ |
| Surface gravity (log g) | 1.80 [7] cgs |
| Temperature | 4,580±122 [8] K |
| Metallicity [Fe/H] | −0.04 [1] dex |
| Age | 202 [1] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
28 Leonis Minoris (28 LMi) is a solitary, [10] orange hued star located in the northern constellation Leo Minor, the lesser lion. It has an apparent magnitude of 5.5, [2] allowing it to be faintly visible to the naked eye. Based on parallax measurements from the Gaia satellite, it is estimated to be 480 light years distant. [1] 28 LMi is approaching the Solar System with a heliocentric radial velocity of −24 km/s. [5] At its current distance, the star brightness is diminished by 0.14 magnitudes due to interstellar dust. [11]
This is a population II [12] giant star with a stellar classification of K1 III. [3] It has a comparable mass to the Sun [7] but has expanded to 22.6 times its girth. [1] It radiates 207 times the luminosity of the Sun [1] from its photosphere at an effective temperature of 4,580 K. [8] It has an iron abundance 90% of the Sun's, making it slightly metal deficient. [1]
- ^ a b c d e f g h i j k Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv: 2208.00211. Bibcode: 2023A&A...674A...1G. doi: 10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ a b Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode: 2000A&A...355L..27H. ISSN 0004-6361.
- ^ a b Adams, Walter S.; Joy, Alfred H.; Humason, Milton L.; Brayton, Ada Margaret (April 1935). "The Spectroscopic Absolute Magnitudes and Parallaxes of 4179 Stars". The Astrophysical Journal. 81: 187. Bibcode: 1935ApJ....81..187A. doi: 10.1086/143628. eISSN 1538-4357. ISSN 0004-637X.
- ^ Haggkvist, L.; Oja, T. (1970). "Results of BV photometry 1969-70 (Uppsala refractor)". Private Communication. Bibcode: 1970Priv.........0H.
- ^ a b Famaey, B.; Jorissen, A.; Luri, X.; Mayor, M.; Udry, S.; Dejonghe, H.; Turon, C. (January 2005). "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters". Astronomy and Astrophysics. 430: 165. arXiv: astro-ph/0409579. Bibcode: 2005A&A...430..165F. doi: 10.1051/0004-6361:20041272. S2CID 17804304.
- ^ Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv: 1108.4971. Bibcode: 2012AstL...38..331A. doi: 10.1134/S1063773712050015. eISSN 1562-6873. ISSN 1063-7737. S2CID 119257644.
- ^ a b c Anders, F.; et al. (August 2019). "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18". Astronomy & Astrophysics. 628: A94. arXiv: 1904.11302. Bibcode: 2019A&A...628A..94A. doi: 10.1051/0004-6361/201935765. eISSN 1432-0746. ISSN 0004-6361.
- ^ a b Stassun, Keivan G.; et al. (9 September 2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv: 1905.10694. Bibcode: 2019AJ....158..138S. doi: 10.3847/1538-3881/ab3467. eISSN 1538-3881. hdl: 1721.1/124721. S2CID 166227927.
- ^ "28 LMi". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved November 18, 2022.
- ^ Eggleton, P. P.; Tokovinin, A. A. (11 September 2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869–879. arXiv: 0806.2878. Bibcode: 2008MNRAS.389..869E. doi: 10.1111/j.1365-2966.2008.13596.x. eISSN 1365-2966. ISSN 0035-8711.
- ^ Gontcharov, George A.; Mosenkov, Aleksandr V. (28 September 2017). "Verifying reddening and extinction for Gaia DR1 TGAS main sequence stars". Monthly Notices of the Royal Astronomical Society. 472 (4): 3805–3820. arXiv: 1709.01160. Bibcode: 2017MNRAS.472.3805G. doi: 10.1093/mnras/stx2219. eISSN 1365-2966. ISSN 0035-8711.
- ^ Bartkevicius, A.; Lazauskaite, R. (1 January 1997). "Classification of Population II Stars in the Vilnius Photometric System. II. Results". Open Astronomy. 6 (4): 499. Bibcode: 1997BaltA...6..499B. doi: 10.1515/astro-1997-0402. eISSN 2543-6376.