SDSS J074921.71+223302.8

All names: SDSS J074921.72+223302.8, Gaia EDR3 674692980851527296, SDSS J074921.71+223302.8, Gaia DR3 674692980851527296, WD 0746+226, GALEX J074921.7+223303, Gaia DR2 674692980851527296

Parameter Unit Gaia EDR3 SDSS DR12 MWDD H MWDD HE Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 07 49 21.72 (0.6) 07 49 21.72 07 49 21.72 (0.7) 07 49 21.72 (0.6) 07 49 21.72 07 49 21.55 07 49 21.72
Declination 22 33 02.32 (0.4) 22 33 02.84 22 33 02.34 (0.4) 22 33 02.92 (0.4) 22 33 02.83 22 32 55.68 22 33 02.84
Spectral type DC+M: DC+M: DC+M DC: DC: DCM: DC
Effective temperature [K] 12539.0 12426.0 10400.0 (273) 10336.0 (231)
log(g) [cgs] 8.61 8.55 8.27 (0.5) 8.99 (0.7)
Mass [M☉] 0.992 0.936
log(Luminosity) [L☉]
Cooling age [Gyr] 0.8929 0.8019
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 3.11 (0.7) 2.96 (0.8) 3.11 (0.7)
Distance [pc] 321.36 (68) 337.47 (90) 321.36 (68)
Composition
Proper motion (right ascension) [mas/yr] 1.446729594 (0.8) 0.469149866 (1) 1.447 (0.8) -5.6
Proper motion (declination) [mas/yr] -37.68729356 (0.5) -36.90077618 (0.9) -37.687 (0.5) -38.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.48 (0.06) 20.48 (0.06) 20.52 (0.07) 20.52 20.50 (0.07)
g magnitude 20.21 (0.02) 20.21 (0.02) 20.25 (0.02) 20.25 20.22 (0.02)
r magnitude 20.23 (0.03) 20.23 (0.03) 20.26 (0.03) 20.26 20.24 (0.03)
i magnitude 20.39 (0.05) 20.39 (0.05) 20.44 (0.05) 20.44 20.41 (0.05)
z magnitude 20.88 (0.3) 20.88 (0.3) 20.90 (0.3) 20.91 20.86 (0.3)
G magnitude 20.17 (0.09) 20.23 20.17 (0.007)
BP magnitude 20.45 (0.09) 20.29
RP magnitude 19.98 (0.09) 19.99
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.016

* 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.