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- G_240-72 abstract "G 240-72 (or WD 1748+708, or LHS 455, or GJ 1221) is a nearby degenerate star (white dwarf) of spectral class DQP9.0, located in constellation Draco. It is the seventh closest white dwarf (after Sirius B, Procyon B, van Maanen's star, Gliese 440, 40 Eridani B and Stein 2051 B). Its trigonometric parallax is 0.1647 ± 0.0024 arcsec, corresponding to a distance 6.07 ± 0.09 pc, or 19.80 ± 0.30 ly.G 240-72 has mass 0.81 Solar masses and surface gravity 108.36 (2.29 · 108) cm·s−2, or approximately 234 000 of Earth's, corresponding to a radius 6850 km, or 107% of Earth's.This white dwarf has relatively low temperature 5590 K (slightly cooler than Sun), and old cooling age, i. e. age as degenerate star (not counting duration of previous existence as main sequence star and as giant star) 5.69 Gyr. Despite it is classified as "white dwarf", it should appear yellow, not white, due low temperature.".
- G_240-72 wikiPageExternalLink TOP100.posted.htm.
- G_240-72 wikiPageID "33506009".
- G_240-72 wikiPageRevisionID "591382575".
- G_240-72 absmagV "15.23".
- G_240-72 ageGyr "5.69".
- G_240-72 appmag "12.507".
- G_240-72 appmag "12.528".
- G_240-72 appmag "12.709".
- G_240-72 appmag "13.1".
- G_240-72 appmag "13.5".
- G_240-72 appmag "14.15".
- G_240-72 appmag "14.55".
- G_240-72 appmag1Passband "B".
- G_240-72 appmag2Passband "V".
- G_240-72 appmag3Passband "R".
- G_240-72 appmag4Passband "I".
- G_240-72 appmag5Passband "J".
- G_240-72 appmag6Passband "H".
- G_240-72 appmag7Passband "K".
- G_240-72 appmagV "14.15".
- G_240-72 class "DQP9.0".
- G_240-72 colwidth "30".
- G_240-72 epoch Epoch_(astronomy).
- G_240-72 equinox Epoch_(astronomy).
- G_240-72 gravity "8.36".
- G_240-72 luminosity "8.5E-5".
- G_240-72 mass "0.81".
- G_240-72 pError "2.4".
- G_240-72 parallax "164.7".
- G_240-72 propMoDec "1112".
- G_240-72 propMoRa "-1261".
- G_240-72 radius "0.00984".
- G_240-72 temperature "5590".
- G_240-72 subject Category:2MASS_objects.
- G_240-72 subject Category:Draco_(constellation).
- G_240-72 subject Category:Gliese_and_GJ_objects.
- G_240-72 subject Category:White_dwarfs.
- G_240-72 type CelestialBody.
- G_240-72 type Star.
- G_240-72 type PhysicalBody.
- G_240-72 comment "G 240-72 (or WD 1748+708, or LHS 455, or GJ 1221) is a nearby degenerate star (white dwarf) of spectral class DQP9.0, located in constellation Draco. It is the seventh closest white dwarf (after Sirius B, Procyon B, van Maanen's star, Gliese 440, 40 Eridani B and Stein 2051 B).".
- G_240-72 label "G 240-72".
- G_240-72 label "G 240-72".
- G_240-72 label "GJ 1221".
- G_240-72 sameAs GJ_1221.
- G_240-72 sameAs G_240-72.
- G_240-72 sameAs m.0h95108.
- G_240-72 sameAs Q5174476.
- G_240-72 sameAs Q5174476.
- G_240-72 wasDerivedFrom G_240-72?oldid=591382575.
- G_240-72 isPrimaryTopicOf G_240-72.
- G_240-72 name "G 240-72".