SDSS J004757.07+162836.5

All names: SDSS J004757.07+162836.54, SDSS J004757.06+162836.5, Gaia DR2 2781820562085975936, Gaia DR3 2781820562085975936, SDSS J004757.07+162836.5, Gaia EDR3 2781820562085975936

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Blouin 2020 MWDD H MWDD HE Gaia DR2 Hollands et al. 2017 Stilism Kepler et al. 2016 Simbad Vincent et al. 2023
Right ascension 00 47 57.07 (0.6) 00 47 57.07 00 47 57.07 (0.9) 00 47 57.08 (0.6)
Declination 16 28 36.66 (0.5) 16 28 36.53 16 28 36.66 (0.8) 16 28 36.45 (0.5)
Spectral type DZ NOTWD NOTWD DZ NOTWD DZ DZ
Effective temperature [K] 6300.0 (246) 6104.0 6034.0 6620.0 (180) 6921.0 (30)
log(g) [cgs] 8.00 7.31 7.25 8.00 (0)
Mass [M] 0.271 0.236
log(Luminosity) [L]
Cooling age [Gyr] 1.0360 1.0990 2.3000
log(H/He)
log(C/He)
log(Ca/He) -8.0 (0.2) -7.68 -7.37
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He) -8.66
log(Mg/He) -6.8 (0.2) -6.77
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) -8.53
log(Mn/He)
log(Fe/He) -6.7 (0.2) -6.47
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 3.62 (0.7) 3.25 (1) 3.62 (0.7)
Distance [pc] 275.88 (55) 308.10 (103) 246.00 (32) 275.88 (55)
Composition He He He
Proper motion (right ascension) [mas/yr] -9.636781352 (0.9) -11.49467087 (3) -9.637 (0.9)
Proper motion (declination) [mas/yr] 13.251649 (0.9) 14.04429218 (1) 13.252 (0.9)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 25.41 (0.7) 25.13 (0.8) 25.13 (0.8) 25.13 (0.8)
g magnitude 20.87 (0.03) 20.86 (0.04) 20.86 (0.04) 20.86 (0.04) 20.86 (0.04)
r magnitude 20.41 (0.03) 20.39 (0.03) 20.39 (0.03) 20.39 (0.03) 20.39 (0.03)
i magnitude 20.54 (0.04) 20.52 (0.04) 20.52 (0.04) 20.52 (0.04) 20.52 (0.04)
z magnitude 20.46 (0.2) 20.38 (0.1) 20.38 (0.1) 20.38 (0.1) 20.38 (0.1)
G magnitude 20.56 (0.1) 20.63 20.56 (0.008)
BP magnitude 20.90 (0.1) 20.58
RP magnitude 20.06 (0.1) 20.01
Pan g magnitude 20.81 (0.02)
Pan r magnitude 20.42 (0.02)
Pan i magnitude 20.51 (0.02)
Pan z magnitude 20.58 (0.09)
Pan y magnitude
E(B-V) 0.048

* 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.