WD 0226-078

All names: TIC 1129123, Gaia EDR3 5178299819470927872, Gaia DR2 5178299819470927872, SDSS J022835.92-074032.3, [HHD2009] SDSS J0228-0740, SDSS J022835.93-074032.3, GALEX J022835.8-074031, SDSS J022835.91-074032.4, [SGR2010] J0228-0740, 2MASS J02283590-0740326, SDSS J022835.93-074032.4, Gaia DR3 5178299819470927872, WD 0226-078, WIRED J022835.92-074032.3

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism sdss-wdms.org (29/04/2016) Tremblay et al. 2011 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 02 28 35.92 (0.2) 02 28 35.92 02 28 35.92 (0.3) 02 28 35.92 02 28 35.92 (0.2) 02 28 35.92 02 28 34.27 02 28 35.93
Declination -07 40 32.30 (0.2) -07 40 32.41 -07 40 32.31 (0.3) -07 40 32.30 -07 40 32.43 (0.2) -07 40 32.35 -07 40 25.68 -07 40 32.39
Spectral type DA+M DA+M DA DA+M DA+M DA+M DA+M DA+MS
Effective temperature [K] 6941.0 13904.0 (609) 13680.0 (790) 11608.0 (163) 11470.0 (110)
log(g) [cgs] 6.16 7.69 (0.1) 7.79 (0.09) 7.14 (0.09) 7.07 (0.07)
Mass [M] 0.051 0.45 (0.06) 0.5 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.2291
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] 3.33 (0.2) 3.79 (0.4) 3.33 (0.2)
Distance [pc] 300.65 (21) 264.02 (28) 505.00 (162) 300.64 (21)
Composition H H
Proper motion (right ascension) [mas/yr] 4.423231391 (0.3) 3.547279291 (0.6) 4.423 (0.3) 4.8
Proper motion (declination) [mas/yr] 7.967785825 (0.2) 8.327477429 (0.5) 7.968 (0.2) 12.4
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS WDMS WDMS WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 16.57 (0.1)
H magnitude 15.96 (0.2)
K magnitude 15.35 (0.2)
u magnitude 19.16 (0.02) 19.15 19.15 (0.02) 19.15 (0.03) 19.13 19.13 (0.03)
g magnitude 18.75 (0.008) 18.76 18.76 (0.008) 18.76 (0.04) 18.77 18.75 (0.04)
r magnitude 18.87 (0.01) 18.87 18.87 (0.01) 18.87 (0.02) 18.87 18.86 (0.02)
i magnitude 18.48 (0.01) 18.51 18.48 (0.01) 18.51 (0.03) 18.51 18.51 (0.03)
z magnitude 18.00 (0.02) 17.96 18.01 (0.02) 17.96 (0.03) 17.97 17.97 (0.03)
G magnitude 18.59 (0.03) 18.61 18.59 (0.004)
BP magnitude 18.83 (0.03) 18.84
RP magnitude 18.09 (0.02) 18.05
Pan g magnitude 18.76 (0.009)
Pan r magnitude 18.85 (0.01)
Pan i magnitude 18.51 (0.006)
Pan z magnitude 18.08 (0.007)
Pan y magnitude 17.79 (0.03)
E(B-V) 0.024

* 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.