WD 1547+028

All names: J1549+0239, Gaia EDR3 4423539654567531136, SDSS J154953.26+023929.6, Gaia DR3 4423539654567531136, Gaia DR2 4423539654567531136, WD 1547+028, SDSS J154953.25+023929.6, GALEX J154953.2+023928, SDSS J154953.26+023929.7

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Coutu et al. 2019 Gaia DR2 Stilism Dufour et al. 2007 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 15 49 53.29 (0.5) 15 49 53.25 15 49 53.29 15 49 53.29 (0.8) 15 49 53.25 (0.5) 15 49 53.26 15 49 53.09 15 49 53.26
Declination 02 39 29.67 (0.4) 02 39 29.65 02 39 29.67 02 39 29.67 (1) 02 39 29.67 (0.4) 02 39 29.65 02 39 26.64 02 39 29.65
Spectral type DZ DZ DZ DZ DZ DZ DZ
Effective temperature [K] 8684.0 (487) 7990.0 (380) 10537.0 (364) 10542.0 (364)
log(g) [cgs] 8.00 8.00 8.12 (0.6) 8.27 (0.8)
Mass [M]
log(Luminosity) [L]
Cooling age [Gyr] 0.0000
log(H/He) <-5.3818 <-3.0
log(C/He)
log(Ca/He) -9.5975 (0.5) -9.07 (0.3)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
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)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 3.12 (0.6) 3.12 (0.6)
Distance [pc] 320.49 (58) 300.79 (23) 286.00 320.49 (58)
Composition He He
Proper motion (right ascension) [mas/yr] 30.5454335 (0.7) 30.545 (0.7) 35.6
Proper motion (declination) [mas/yr] -0.495913971 (0.5) -0.496 (0.5) -2.2
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.71 (0.07) 20.72 (0.08) 20.71 (0.08) 20.70 20.72 (0.08)
g magnitude 20.38 (0.02) 20.35 (0.03) 20.34 (0.03) 20.34 20.36 (0.03)
r magnitude 20.28 (0.03) 20.33 (0.03) 20.31 (0.03) 20.31 20.32 (0.03)
i magnitude 20.37 (0.05) 20.41 (0.04) 20.41 (0.04) 20.41 20.42 (0.04)
z magnitude 20.40 (0.2) 20.83 (0.3) 20.76 (0.3) 20.79 20.80 (0.3)
G magnitude 20.28 (0.06) 20.37 20.28 (0.005)
BP magnitude 20.47 (0.06) 20.26
RP magnitude 20.14 (0.06) 20.03
Pan g magnitude 20.37 (0.01)
Pan r magnitude 20.33 (0.02)
Pan i magnitude 20.40 (0.03)
Pan z magnitude 20.41 (0.06)
Pan y magnitude
E(B-V) 0.054

* 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.