SBSS 1522+551

All names: SDSS J152408.24+550048.9, USNO-B1.0 1450-00240310, SDSS J152408.24+550049.1, PSO J152408.238+550049.082, Gaia DR2 1599816562607892864, SDSS J152408.24+550048.99

Parameter Unit MWDD H Pan-STARRS DR1 Gaia DR2 Kepler et al. 2016 SDSS DR12 Simbad
Right ascension 15 24 08.23 (0.1) 15 24 08.24 15 24 08.24
Declination 55 00 49.02 (0.1) 55 00 49.15 55 00 49.23
Spectral type DA DA DA
Effective temperature [K] 21733.0 27134.0 (137)
log(g) [cgs] 7.70 7.85 (0.02)
Mass [M☉] 0.478 0.5670000000000001 (0.009)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.0282
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] 2.51 (0.1)
Distance [pc] 398.78 (22)
Composition H
Proper motion (right ascension) [mas/yr] -0.8392572349 (0.3) 0.0
Proper motion (declination) [mas/yr] -17.4700079558 (0.3) -16.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.70
V magnitude
R magnitude 18.40
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.79 (0.02) 17.77 (0.01) 17.77
g magnitude 17.95 (0.02) 17.92 (0.006) 17.91
r magnitude 18.37 (0.02) 18.36 (0.008) 18.36
i magnitude 18.71 (0.02) 18.70 (0.01) 18.72
z magnitude 19.02 (0.04) 19.02 (0.04) 19.02
G magnitude 18.18
BP magnitude 17.98
RP magnitude 18.40
Pan g magnitude 18.04 (0.02)
Pan r magnitude 18.36 (0.009)
Pan i magnitude 18.72 (0.005)
Pan z magnitude 19.01 (0.01)
Pan y magnitude 19.16 (0.07)

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.