PG 0048+004

All names: UCAC4 454-001107, GALEX J005107.0+004232, HS 0048+0026, SDSS J005107.01+004232.5, SDSS J005107.02+004232.5, Balloon 94700002, PG 0048+004, FBS 0048+004, Gaia DR2 2537182630815412736, 2MASS J00510702+0042322, SDSS J005107.03+004232.4, PG0048+004, SDSS J005107.03+004232.44, uvby98 610160860, Gaia EDR3 2537182630815412736, TIC 257430973, Gaia DR3 2537182630815412736, PHL 860

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 SDSS DR10 Geier 2020 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Simbad Eisenstein et al. 2006
Right ascension 00 51 07.04 (0.05) 00 51 07.02 00 51 07.02 00 51 07.00 00 51 07.04 (0.07) 00 51 07.02 (0.05) 00 51 07.02
Declination 00 42 32.38 (0.03) 00 42 32.50 00 42 32.50 00 42 33.09 00 42 32.38 (0.05) 00 42 32.51 (0.03) 00 42 32.52
Spectral type sdOB sdO sdO sdOB SDO
Effective temperature [K] 38500.0 (300) 29270.0 34879.0 (1569) 35543.0 (150)
log(g) [cgs] 5.83 (0.07) 4.92 5.55 (0.3) 5.63 (0.03)
Mass [M] 0.073
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.57 (0.06) 0.59 (0.08) 0.59 (0.08) 0.57 (0.06)
Distance [pc] 1764.02 (175) 1698.37 (236) 1698.34 (236) 1763.98 (175)
Composition
Proper motion (right ascension) [mas/yr] 12.58762374 (0.07) 12.283 (0.2) 12.28269422 (0.2) 12.588 (0.07) 8.2
Proper motion (declination) [mas/yr] -8.571938075 (0.06) -8.482 (0.1) -8.48228051 (0.1) -8.572 (0.06) -10.4
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.70 (0.1)
V magnitude 15.81 (0.1)
R magnitude 16.16 (0.3)
I magnitude
J magnitude 16.55 (0.1) 16.63 (0.01)
H magnitude 16.65 (0.3) 16.73 (0.03)
K magnitude 15.72 16.80 (0.05)
u magnitude 15.23 (0.004) 15.23 (0.004) 15.23 (0.004) 15.28 (0.01) 15.23 (0.004) 15.22 (0.03)
g magnitude 15.59 (0.004) 15.59 (0.004) 15.59 (0.004) 15.58 (0.02) 15.59 (0.004) 15.59 (0.03)
r magnitude 16.10 (0.004) 16.10 (0.004) 16.10 (0.004) 16.10 (0.02) 16.10 (0.004) 16.09 (0.02)
i magnitude 16.45 (0.005) 16.45 (0.005) 16.45 (0.005) 16.45 (0.02) 16.45 (0.005) 16.48 (0.02)
z magnitude 16.77 (0.01) 16.77 (0.01) 16.77 (0.01) 16.76 (0.02) 16.77 (0.01) 16.83 (0.02)
G magnitude 15.85 (0.003) 15.87 (0.001) 15.87 15.85 (0.003)
BP magnitude 15.69 (0.003) 15.62 (0.005) 15.62
RP magnitude 16.16 (0.004) 16.16 (0.005) 16.16
Pan g magnitude 15.67 (0.002) 15.67 (0.002)
Pan r magnitude 16.12 (0.004) 16.12 (0.004)
Pan i magnitude 16.49 (0.004) 16.49 (0.004)
Pan z magnitude 16.78 (0.004) 16.78 (0.004)
Pan y magnitude 16.98 (0.004) 16.98 (0.004)
E(B-V) 0.025

* 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.