SDSS J093059.16+202429.4

All names: GALEX J093059.2+202429, Gaia EDR3 634734765496404096, SDSS J093059.16+202429.4, Gaia DR3 634734765496404096, SDSS J093059.15+202429.3, Gaia DR2 634734765496404096

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 30 59.15 (0.4) 09 30 59.16 09 30 59.15 (0.6) 09 30 59.16 (0.4) 09 30 59.16
Declination 20 24 29.32 (0.3) 20 24 29.32 20 24 29.32 (0.7) 20 24 29.32 (0.3) 20 24 29.35
Spectral type DA DAH DAH DAH DA
Effective temperature [K] 11385.2 (862) 9482.0 14229.0 (739)
log(g) [cgs] 8.18 (0.2) 7.81 7.76 (0.1)
Mass [M] 0.7113654534584941 (0.2) 0.495
log(Luminosity) [L]
Cooling age [Gyr] 0.5499
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 (0.4) 3.12 (0.6) 2.51 (0.4)
Distance [pc] 397.71 (63) 320.07 (62) 397.71 (63)
Composition H
Proper motion (right ascension) [mas/yr] -4.086440936 (0.5) -4.006439327 (1) -4.086 (0.5)
Proper motion (declination) [mas/yr] 0.024990956 (0.4) 1.173606742 (1) 0.025 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.99 (0.04) 19.99 (0.04) 19.96 (0.06)
g magnitude 19.81 (0.01) 19.80 (0.01) 19.90 (0.03)
r magnitude 19.71 (0.02) 19.71 (0.02) 19.70 (0.02)
i magnitude 19.93 (0.03) 19.93 (0.03) 19.94 (0.03)
z magnitude 20.00 (0.09) 20.00 (0.09) 19.97 (0.08)
G magnitude 19.61 (0.05) 19.66 19.61 (0.004)
BP magnitude 19.63 (0.05) 19.71
RP magnitude 19.63 (0.07) 19.61
Pan g magnitude 19.49 (0.02)
Pan r magnitude 19.69 (0.01)
Pan i magnitude 19.92 (0.02)
Pan z magnitude 20.06 (0.05)
Pan y magnitude
E(B-V) 0.029

* 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.