SDSS J154759.75+022740.5

All names: SDSS J154759.74+022740.4, Gaia EDR3 4423485572336036352, Gaia DR2 4423485572336036352, Gaia DR3 4423485572336036352, SDSS J154759.75+022740.50, SDSS J154759.75+022740.5, GALEX J154759.7+022740

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Simbad Vincent et al. 2023
Right ascension 15 47 59.74 (0.3) 15 47 59.74 15 47 59.74 (0.3) 15 47 59.74 (0.3)
Declination 02 27 40.51 (0.3) 02 27 40.49 02 27 40.51 (0.2) 02 27 40.50 (0.3)
Spectral type DA DA DA DA
Effective temperature [K] 14526.0 29365.0 (166)
log(g) [cgs] 7.57 8.05 (0.04)
Mass [M] 0.402 0.6659999999999999 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 0.1181
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] 1.48 (0.3) 1.97 (0.4) 1.48 (0.3)
Distance [pc] 676.81 (150) 507.50 (102) 676.82 (150)
Composition H
Proper motion (right ascension) [mas/yr] 7.727417881 (0.4) 5.968491772 (0.7) 7.727 (0.4)
Proper motion (declination) [mas/yr] 0.525448617 (0.4) 1.952086443 (0.6) 0.525 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.03 (0.02) 19.06 (0.03) 19.03 (0.02)
g magnitude 19.06 (0.01) 19.12 (0.02) 19.06 (0.01)
r magnitude 19.40 (0.01) 19.48 (0.02) 19.40 (0.01)
i magnitude 19.66 (0.02) 19.75 (0.03) 19.66 (0.02)
z magnitude 19.86 (0.1) 19.96 (0.1) 19.86 (0.1)
G magnitude 19.30 (0.04) 19.35 19.30 (0.005)
BP magnitude 19.29 (0.04) 19.24
RP magnitude 19.44 (0.06) 19.36
Pan g magnitude 19.15 (0.01)
Pan r magnitude 19.46 (0.009)
Pan i magnitude 19.72 (0.01)
Pan z magnitude 19.92 (0.04)
Pan y magnitude 19.83 (0.1)
E(B-V) 0.057

* 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.