WD 0916+028

All names: SDSS J091922.19+023605.0, SDSS J091922.18+023605.0, SDSS J091922.26+023604.3, J0919+0236, Gaia DR3 3845201035182583424, Gaia DR2 3845201035182583424, SDSS J091922.19+023604.9, Gaia EDR3 3845201035182583424, WD 0916+028, SDSS J091922.22+023604.5

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Coutu et al. 2019 Gaia DR2 Stilism Koester et al. 2006 Dufour et al. 2005 Liebert et al. 2003 Harris et al. 2003 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 19 22.29 (0.2) 09 19 22.23 09 19 22.19 09 19 22.29 (0.3) 09 19 22.29 09 19 22.18 (0.2) 09 19 22.19 09 19 21.79 09 19 22.18
Declination 02 36 03.87 (0.2) 02 36 04.52 02 36 05.06 02 36 03.91 (0.4) 02 36 03.87 02 36 05.08 (0.2) 02 36 05.03 02 35 59.64 02 36 05.01
Spectral type DQ DQ DQ DQ DQ CI DQ DQ DQhot DQC1 DQ_CI hotDQ
Effective temperature [K] 11319.0 (478) 11566.0 10670.0 (310) 12500.0 11113.0 (425) 11983.0 (205) 12326.0 (232)
log(g) [cgs] 8.61 8.00 (0) 8.00 (0) 8.56 (0.06) 8.91 (0.1) 9.88 (0.1)
Mass [M] 0.9761 0.943 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 1.2800
log(H/He)
log(C/He) -2.8477 (0.07) -3.27 (0.3)
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 6.25 (0.3) 6.40 6.40 (0.4) 6.25 6.25 (0.3)
Distance [pc] 159.95 (7) 156.28 (9) 156.28 (9) 237.00 159.95 159.95 (7)
Composition He He He
Proper motion (right ascension) [mas/yr] 103.8561077 (0.3) 102.635953 (0.7) 103.856 (0.3) 105.3
Proper motion (declination) [mas/yr] -75.10220362 (0.2) -74.25413274 (1) -75.102 (0.2) -74.2
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.86 (0.02) 18.96 18.86 (0.02) 18.94 (0.02) 18.96 18.93 (0.02)
g magnitude 18.98 (0.009) 18.96 18.98 (0.009) 18.97 (0.02) 18.96 18.96 (0.02)
r magnitude 19.14 (0.01) 19.19 19.14 (0.01) 19.19 (0.02) 19.18 19.18 (0.02)
i magnitude 19.42 (0.02) 19.37 19.42 (0.02) 19.37 (0.03) 19.37 19.36 (0.03)
z magnitude 19.61 (0.07) 19.69 19.61 (0.07) 19.66 (0.08) 19.69 19.66 (0.08)
G magnitude 19.04 (0.03) 19.08 19.04 19.04 (0.004)
BP magnitude 19.03 (0.03) 18.89
RP magnitude 19.10 (0.04) 19.02
Pan g magnitude 19.02 (0.01)
Pan r magnitude 19.17 (0.008)
Pan i magnitude 19.39 (0.01)
Pan z magnitude 19.69 (0.03)
Pan y magnitude 19.55 (0.07)
E(B-V) 0.009

* 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.