LSPM J1623+3030

All names: SDSS J162301.57+303041.3, SDSS J162301.57+303040.1, WD 1621+306, PSO J162301.578+303040.047, Gaia DR2 1318362064300983040, SDSS J162301.57+303040.18

Parameter Unit MWDD H Pan-STARRS DR1 Gaia DR2 Kepler et al. 2015 SDSS DR10 Simbad
Right ascension 16 23 01.58 (0.08) 16 23 01.57 16 23 01.57
Declination 30 30 39.49 (0.1) 30 30 41.31 30 30 41.31
Spectral type DA DA DA
Effective temperature [K] 15412.0 18372.0 (171)
log(g) [cgs] 7.63 7.87 (0.03)
Mass [M☉] 0.429 0.5539999999999999 (0.01)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.1016
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] 3.40 (0.1)
Distance [pc] 294.25 (10)
Composition H
Proper motion (right ascension) [mas/yr] 8.7838789282 (0.2) 6.0
Proper motion (declination) [mas/yr] -160.993688213 (0.2) -156.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.40
V magnitude
R magnitude 18.40
I magnitude
J magnitude 18.44
H magnitude 18.70
K magnitude
u magnitude 18.11 (0.02) 18.10 (0.01) 18.10
g magnitude 17.88 (0.01) 17.86 (0.005) 17.86
r magnitude 18.23 (0.02) 18.22 (0.007) 18.22
i magnitude 18.54 (0.02) 18.53 (0.01) 18.53
z magnitude 18.78 (0.04) 18.80 (0.04) 18.80
G magnitude 18.10
BP magnitude 18.01
RP magnitude 18.22
Pan g magnitude 17.94 (0.01)
Pan r magnitude 18.24 (0.005)
Pan i magnitude 18.53 (0.005)
Pan z magnitude 18.76 (0.02)
Pan y magnitude 18.91 (0.03)

* 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.