SDSS J023015.36+010958.8

All names: [CBS2017] ALH2L290, WIRED J023015.37+010958.7, SDSS J023015.36+010958.8, WISEA J023015.40+010957.5, Gaia DR2 2501382910172133376, SDSS J023015.37+010958.7, WISE J023015.40+010957.4, SDSS J023015.37+010958.8, Gaia EDR3 2501382910172133376, WD 0227+009, SDSS J023015.30+010958.8, SDSS J023015.38+010958.8

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013
Right ascension 02 30 15.35 (0.6) 02 30 15.36 02 30 15.35 (1) 02 30 15.36 02 30 15.37 02 30 15.50 02 30 15.38
Declination 01 09 58.77 (0.5) 01 09 58.83 01 09 58.78 (0.7) 01 09 58.82 01 09 58.85 01 09 59.76 01 09 58.77
Spectral type DA+M DA+M DA+M DA DA+M
Effective temperature [K] 6889.0 9375.0 (183) 9184.0 (192)
log(g) [cgs] 6.44 8.20 (0.3) 8.14 (0.2)
Mass [M] 0.086
log(Luminosity) [L]
Cooling age [Gyr]
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] 1.22 (0.7) 2.15 (0.8)
Distance [pc] 821.27 (456) 464.58 (173)
Composition H
Proper motion (right ascension) [mas/yr] -14.89846485 (1) -11.59342741 (2) -20.0 (6) -20.5
Proper motion (declination) [mas/yr] -12.60407952 (0.8) -13.51430302 (2) -16.0 (6) -15.9
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 17.72 (0.04)
H magnitude 17.36 (0.06)
K magnitude 16.91 (0.07)
u magnitude 20.48 (0.06) 20.48 (0.06) 20.32 (0.06) 20.32 20.34 (0.06)
g magnitude 20.03 (0.02) 20.03 (0.02) 20.16 (0.04) 20.15 20.17 (0.04)
r magnitude 20.12 (0.02) 20.12 (0.02) 20.28 (0.04) 20.28 20.28 (0.04)
i magnitude 19.64 (0.02) 19.64 (0.02) 19.86 (0.04) 19.86 19.86 (0.04)
z magnitude 19.12 (0.05) 19.12 (0.04) 19.20 (0.06) 19.20 19.21 (0.06)
G magnitude 20.30 (0.08) 20.35
BP magnitude 20.20 (0.08) 20.18
RP magnitude 19.30 (0.07) 19.30
Pan g magnitude 20.14 (0.03)
Pan r magnitude 20.21 (0.03)
Pan i magnitude 19.95 (0.02)
Pan z magnitude 19.33 (0.03)
Pan y magnitude 19.06 (0.04)
E(B-V) 0.029

* 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 (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.