US 3270

All names: SDSS J025301.60-013006.9, LAMOST J025301.60-013006.8, SDSS J025301.61-013006.8, PSO J025301.584-013006.827, Gaia DR2 5187572001027818240, SDSS J025301.60-013006.95

Parameter Unit Pan-STARRS DR1 Gaia DR2 Kepler et al. 2015 SDSS DR10 Simbad
Right ascension 02 53 01.59 (0.1) 02 53 01.61 02 53 01.61
Declination -01 30 07.08 (0.1) -01 30 06.87 -01 30 06.87
Spectral type DA+M4 DA+dM
Effective temperature [K] 29727.0 (107)
log(g) [cgs] 7.64 (0.04)
Mass [M☉] 0.521 (0.007)
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 2.46 (0.1)
Distance [pc] 405.70 (18)
Composition
Proper motion (right ascension) [mas/yr] -27.233701044 (0.2)
Proper motion (declination) [mas/yr] -34.4661889728 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.40
V magnitude
R magnitude
I magnitude
J magnitude 16.29
H magnitude 15.89
K magnitude 15.34
u magnitude 17.29 (0.02) 17.29 (0.009) 17.29
g magnitude 17.39 (0.02) 17.37 (0.005) 17.37
r magnitude 17.66 (0.01) 17.66 (0.006) 17.66
i magnitude 17.62 (0.01) 17.62 (0.007) 17.62
z magnitude 17.38 (0.02) 17.39 (0.01) 17.39
G magnitude 17.44
BP magnitude 17.40
RP magnitude 17.24
Pan g magnitude 17.38 (0.004)
Pan r magnitude 17.65 (0.004)
Pan i magnitude 17.67 (0.01)
Pan z magnitude 17.45 (0.007)
Pan y magnitude 17.29 (0.02)

* 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.