SDSS J073819.64+282127.0

All names: Gaia DR3 878510924465119616, Gaia EDR3 878510924465119616, SDSS J073819.60+282126.9, GALEX J073819.6+282127, WD 0735+284, SDSS J073819.64+282126.9, SDSS J073819.65+282127.0, Gaia DR2 878510924465119616, SDSS J073819.64+282127.0

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 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 07 38 19.57 (0.1) 07 38 19.64 07 38 19.57 (0.2) 07 38 19.57 07 38 19.65 (0.1) 07 38 19.64 07 38 19.70 07 38 19.65
Declination 28 21 26.92 (0.1) 28 21 27.01 28 21 26.92 (0.1) 28 21 26.92 28 21 26.98 (0.1) 28 21 27.05 28 21 21.24 28 21 27.01
Spectral type DA DA DA DA DA_auto DA DA DA
Effective temperature [K] 8365.0 8350.0 (50) 8407.0 (235) 8563.0 (33) 8239.0 (39)
log(g) [cgs] 7.95 8.29 (0.07) 7.99 (0.05) 8.48 (0.05) 8.15 (0.06)
Mass [M] 0.565 0.78 (0.05) 0.587 (0.04) 0.683 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.8887 1.5849
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] 8.38 (0.1) 8.29 (0.2) 8.38 8.38 (0.1)
Distance [pc] 119.36 (2) 120.66 (3) 119.36 119.36 (2)
Composition H H
Proper motion (right ascension) [mas/yr] -68.18583201 (0.2) -68.49171536 (0.3) -68.186 (0.2) -61.8
Proper motion (declination) [mas/yr] -4.035675949 (0.1) -3.976992333 (0.3) -4.036 (0.1) -3.1
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 17.76 (0.04)
H magnitude 17.65 (0.06)
K magnitude 17.67 (0.1)
u magnitude 18.63 (0.02) 18.63 (0.02) 18.60 (0.02) 18.59 18.60 (0.02)
g magnitude 18.25 (0.006) 18.25 (0.006) 18.29 (0.01) 18.28 18.28 (0.01)
r magnitude 18.19 (0.007) 18.19 (0.007) 18.18 (0.02) 18.17 18.16 (0.02)
i magnitude 18.23 (0.01) 18.23 (0.01) 18.21 (0.02) 18.21 18.21 (0.02)
z magnitude 18.42 (0.03) 18.42 (0.03) 18.41 (0.04) 18.41 18.40 (0.04)
G magnitude 18.12 (0.02) 18.16 18.12 18.12 (0.003)
BP magnitude 18.23 (0.02) 18.26
RP magnitude 17.92 (0.03) 17.97
Pan g magnitude 18.21 (0.003)
Pan r magnitude 18.18 (0.003)
Pan i magnitude 18.23 (0.005)
Pan z magnitude 18.34 (0.01)
Pan y magnitude 18.42 (0.03)
E(B-V) 0.004

* 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.