Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Leo Minor |
Right ascension | 10h 43m 24.95671s[1] |
Declination | 23° 11′ 18.2499″[1] |
Apparent magnitude (V) | 5.08[2] |
Characteristics | |
Spectral type | A3Vn[3] |
U−B color index | +0.06[4] |
B−V color index | +0.04[4] |
Astrometry | |
Radial velocity (Rv) | +18.50[5] km/s |
Proper motion (μ) | RA: -115.30[1] mas/yr Dec.: +7.62[1] mas/yr |
Parallax (π) | 14.23 ± 0.25 mas[1] |
Distance | 229 ± 4 ly (70 ± 1 pc) |
Absolute magnitude (MV) | 0.85[2] |
Details | |
Mass | 2.47[6] M☉ |
Radius | 2.1[7] R☉ |
Luminosity | 55[6] L☉ |
Surface gravity (log g) | 3.95[8] cgs |
Temperature | 9,902[8] K |
Metallicity [Fe/H] | -0.01[9] dex |
Rotational velocity (v sin i) | 201[6] km/s |
Age | 182[8] Myr |
Other designations | |
Database references | |
SIMBAD | data |
41 Leonis Minoris is a single[11] star in the northern constellation Leo Minor, located near the southern border with the neighboring constellation of Leo. It is visible to the naked eye as a dim, white-hued star with an apparent visual magnitude of 5.08.[2] This object is located approximately 229 light years away from the Sun, based on parallax,[1] and is drifting further away with a radial velocity of +18.5 km/s.[5]
This is an ordinary A-type main-sequence star with a stellar classification of A3Vn,[3] where the 'n' suffix indicates "nebulous" (broadened) lines due to rapid rotation. It is about 182[8] million years old with a high projected rotational velocity of 201 km/s.[6] The star has 2.5[6] times the mass of the Sun and 2.1[7] times the Sun's radius. It is radiating 55[6] times the luminosity of the Sun from its photosphere at an effective temperature of 9,902 K.[8]
References
[edit]- ^ a b c d e f Van Leeuwen, F. (2007). "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. S2CID 18759600. Vizier catalog entry
- ^ a b c Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. S2CID 119257644. Vizier catalog entry
- ^ a b Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H. 5050. Bibcode:1995yCat.5050....0H.
- ^ a b Mermilliod, J. C. (2006). "VizieR Online Data Catalog: Homogeneous Means in the UBV System (Mermilliod 1991)". VizieR On-line Data Catalog: II/168. Originally Published in: Institut d'Astronomie. 2168. Bibcode:2006yCat.2168....0M.Vizier catalog entry
- ^ a b Evans, D. S. (1967). "The Revision of the General Catalogue of Radial Velocities". Determination of Radial Velocities and Their Applications. 30: 57. Bibcode:1967IAUS...30...57E.
- ^ a b c d e f Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars". Astronomy & Astrophysics. 537: A120. arXiv:1201.2052. Bibcode:2012A&A...537A.120Z. doi:10.1051/0004-6361/201117691. S2CID 55586789. Vizier catalog entry
- ^ a b Allende Prieto, C.; Lambert, D. L. (1999). "Fundamental parameters of nearby stars from the comparison with evolutionary calculations: Masses, radii and effective temperatures". Astronomy and Astrophysics. 352: 555–562. arXiv:astro-ph/9911002. Bibcode:1999A&A...352..555A. Vizier catalog entry
- ^ a b c d e David, Trevor J.; Hillenbrand, Lynne A. (2015). "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal. 804 (2): 146. arXiv:1501.03154. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146. S2CID 33401607. Vizier catalog entry
- ^ Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters. 38 (12): 771–782. arXiv:1606.08814. Bibcode:2012AstL...38..771G. doi:10.1134/S1063773712120031. S2CID 118345778. Vizier catalog entry
- ^ "41 LMi". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-07-22.
- ^ Eggleton, P. P.; Tokovinin, A. A. (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. S2CID 14878976.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction