2MASS J21230630-0811263

All names: Gaia DR2 6897694220128108544, WD 2120-084, 2MASS J21230630-0811263, SDSS J212306.35-081127.1, Gaia EDR3 6897694220128108544, SDSS J212306.30-081126.2, WISE J212306.35-081126.5, SDSS J212306.34-081127.0, Gaia DR2 6897694220128608128

Parameter Unit Gaia EDR3 MWDD H Gaia DR2 sdss-wdms.org (29/04/2016) SDSS DR12 Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013
Right ascension 21 23 06.37 (0.09) 21 23 06.37 (0.1) 21 23 06.35 21 23 06.34 21 23 06.30 (120) 21 23 05.98 21 23 06.35
Declination -08 11 28.07 (0.07) -08 11 28.04 (0.1) -08 11 27.06 -08 11 27.05 -08 11 26.33 (80) -08 11 25.08 -08 11 27.06
Spectral type DA+M DA+M M6 DA2.9+M6 DA+M
Effective temperature [K] 13414.0 17304.0 (131) 18940.0 (164)
log(g) [cgs] 7.66 7.77 (0.03) 7.74 (0.02)
Mass [M] 0.435 0.5 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.1712
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 5.36 (0.1) 5.40 (0.2)
Distance [pc] 186.69 (4) 185.28 (6) 208.00 (4)
Composition H
Proper motion (right ascension) [mas/yr] 26.44632149 (0.1) 26.75537949 (0.2)
Proper motion (declination) [mas/yr] -62.79507527 (0.08) -62.79380477 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS yes WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 15.49 (0.08)
H magnitude 15.06 (0.1)
K magnitude 14.45 (0.1)
u magnitude 17.48 17.50 (0.01) 19.75 (0.05) 17.55 17.48 (0.02)
g magnitude 17.27 17.16 (0.005) 17.33 17.27 (0.02)
r magnitude 17.51 17.41 (0.005) 24.80 (1) 17.52 17.51 (0.01)
i magnitude 17.67 17.56 (0.007) 18.53 (0.01) 17.65 17.67 (0.03)
z magnitude 17.82 17.77 (0.02) 17.27 (0.01) 17.88 17.82 (0.08)
G magnitude 17.35 (0.009) 17.38 18.87 (0.005)
BP magnitude 17.28 (0.009) 17.26
RP magnitude 16.85 (0.02) 16.83
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (LANL). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.