Lambda Telescopii: Difference between revisions
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I don't know why they don't list it, but there is Gaia DR3 astrometry. Oh, and a poorly constrained radial velocity is there also. |
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| equinox = [[J2000.0]] ([[International Celestial Reference System|ICRS]]) |
| equinox = [[J2000.0]] ([[International Celestial Reference System|ICRS]]) |
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| constell = [[Telescopium]] |
| constell = [[Telescopium]] |
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| ra = {{RA|18|58|27. |
| ra = {{RA|18|58|27.79251}}<ref name = GaiaDR3/> |
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| dec = {{DEC|−52|56|19. |
| dec = {{DEC|−52|56|19.1999}}<ref name = GaiaDR3/> |
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| appmag_v = +4.87<ref name=Corben1968/> |
| appmag_v = +4.87<ref name=Corben1968/> |
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}} |
}} |
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}} |
}} |
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{{Starbox astrometry |
{{Starbox astrometry |
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| radial_v = |
| radial_v = −2{{±|4.2}}<ref name = Gontcharov2006/> |
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| prop_mo_ra = + |
| prop_mo_ra = +13.365 |
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| prop_mo_dec = −8. |
| prop_mo_dec = −8.805 |
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| pm_footnote = <ref name = GaiaDR3/> |
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| parallax = 5.33 |
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| |
| parallax = 6.6117 |
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| p_error = 0.1718 |
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| parallax_footnote = <ref name= |
| parallax_footnote = <ref name = GaiaDR3/> |
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| absmag_v = +0.45<ref name=Gontcharov2012/> |
| absmag_v = +0.45<ref name=Gontcharov2012/> |
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}} |
}} |
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==References== |
==References== |
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{{reflist|refs= |
{{reflist|refs= |
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<ref name = GaiaDR3>{{Cite DR3|6656678453823573888}}</ref> |
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<ref name=Levato1972>{{citation |
<ref name=Levato1972>{{citation |
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| doi=10.1134/S1063773712110035 | bibcode=2012AstL...38..694G |
| doi=10.1134/S1063773712110035 | bibcode=2012AstL...38..694G |
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| arxiv=1606.09028 | s2cid=119108982 | postscript=. }}</ref> |
| arxiv=1606.09028 | s2cid=119108982 | postscript=. }}</ref> |
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<ref name = Gontcharov2006>{{cite journal | last1 = Gontcharov | first1 = G. A. | title = Pulkovo Compilation of Radial Velocities for 35,495 Hipparcos stars in a common system | journal = Astronomy Letters | date = November 2006 | volume = 32 | issue = 11 | pages = 759–771 | issn = 1063-7737 | eissn = 1562-6873 | doi = 10.1134/S1063773706110065 | pmid = | bibcode = 2006AstL...32..759G | arxiv = 1606.08053 | s2cid = 119231169 }}</ref> |
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<ref name=SIMBAD>{{cite simbad |
<ref name=SIMBAD>{{cite simbad |
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Revision as of 16:45, 15 September 2022
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Telescopium |
| Right ascension | 18h 58m 27.79251s[1] |
| Declination | −52° 56′ 19.1999″[1] |
| Apparent magnitude (V) | +4.87[2] |
| Characteristics | |
| Spectral type | B9.5IV/V[3] or A0V[4] |
| B−V color index | −0.05[2] |
| Astrometry | |
| Radial velocity (Rv) | −2±4.2[5] km/s |
| Proper motion (μ) | RA: +13.365 mas/yr[1] Dec.: −8.805 mas/yr[1] |
| Parallax (π) | 6.6117 ± 0.1718 mas[1] |
| Distance | 490 ± 10 ly (151 ± 4 pc) |
| Absolute magnitude (MV) | +0.45[6] |
| Details | |
| Luminosity | 350[7] L☉ |
| Surface gravity (log g) | 3.42[8] cgs |
| Temperature | 10,139[8] K |
| Metallicity [Fe/H] | +0.19[8] dex |
| Rotational velocity (v sin i) | 110[4] km/s |
| Age | 268[6] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
λ Telescopii, Latinized as Lambda Telescopii, is a solitary,[10] white-hued star in the southern constellation of Telescopium. It is visible to the naked eye as a faint point of light with an apparent magnitude of +4.87.[2] This body is located approximately 610 light years from the Sun based on parallax.[11] At that distance, the visual magnitude of the star is diminished by an extinction of 0.18 due to interstellar dust.[6]
This is a late B- or early A-type main-sequence star[3][4] that is generating energy through core hydrogen fusion. The star is 268[6] million years old with a relatively high rate of spin, showing a projected rotational velocity of 110.[4] It has a higher than solar metallicity – the abundance of elements more massive than Helium.[8] The star is radiating 350[7] times the Sun's luminosity from its photosphere at an effective temperature of 10,139 K.[8]
References
- ^ a b c d 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 c Corben, P. M.; Stoy, R. H. (1968), "Photoelectric Magnitudes and Colours for Bright Southern Stars", Monthly Notes of the Astronomical Society of Southern Africa, 27: 11, Bibcode:1968MNSSA..27...11C.
- ^ a b Houk, Nancy; Cowley, A. P. (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, vol. 1, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode:1975mcts.book.....H.
- ^ a b c d Levato, O. H. (August 1972), "Rotational Velocities and Spectral Types of Some A-Type Stars", Publications of the Astronomical Society of the Pacific, 84 (500): 584, Bibcode:1972PASP...84..584L, doi:10.1086/129336
- ^ Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35,495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. eISSN 1562-6873. ISSN 1063-7737. S2CID 119231169.
- ^ a b c d Gontcharov, G. A. (November 2012), "Spatial distribution and kinematics of OB stars", Astronomy Letters, 38 (11): 694–706, arXiv:1606.09028, Bibcode:2012AstL...38..694G, doi:10.1134/S1063773712110035, S2CID 119108982.
- ^ a b McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society, 427 (1): 343–57, arXiv:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x, S2CID 118665352.
- ^ a b c d e Soubiran, C.; Le Campion, J.-F.; Cayrel de Strobel, G.; Caillo, A. (June 2010), "The PASTEL catalogue of stellar parameters", Astronomy and Astrophysics, 515: A111, arXiv:1004.1069, Bibcode:2010A&A...515A.111S, doi:10.1051/0004-6361/201014247, S2CID 118362423.
- ^ "lam Tel". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-06-05.
{{cite web}}: CS1 maint: postscript (link) - ^ 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.
- ^ 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.
