SDSS J172200.29+322135.8

All names: SDSS J172200.30+322135.7, Gaia DR2 1333697880686680960, SDSS J172200.29+322135.6, Gaia EDR3 1333697880686680960, SDSS J172200.29+322135.8, WDJ172200.29+322135.90, SDSS J172200.29+322135.9, J1722+3221, Gaia DR3 1333697880686680960

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Kleinman et al. 2013 Vincent et al. 2023
Right ascension 17 22 00.33 (0.1) 17 22 00.30 17 22 00.33 (0.1) 17 22 00.33 17 22 00.29 (0.1) 17 22 00.33 17 22 00.29
Declination 32 21 35.21 (0.1) 32 21 35.67 32 21 35.23 (0.1) 32 21 35.21 32 21 35.90 (0.1) 32 21 35.23 32 21 35.91
Spectral type DA DA DA DA DA DA DC DA
Effective temperature [K] 6498.0 (39) 6706.0 (41) 6498.0 (38) 6680.0 6721.0 (120) 6718.0 (43)
log(g) [cgs] 7.92 (0.02) 8.00 (0.02) 7.92 (0.02) 7.99 8.01 (0.04) 7.83 (0.1)
Mass [M] 0.546 (0.01) 0.59 (0.02) 0.543 (0.02) 0.583 0.595 (0.03) 0.06
log(Luminosity) [L]
Cooling age [Gyr] 1.7500 1.6730
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] 10.12 (0.1) 10.10 (0.2) 10.10 (0.2) 10.12 10.12 (0.1) 10.10 (0.2)
Distance [pc] 98.79 (1) 99.01 (2) 99.02 (2) 98.79 98.79 (1) 99.02 (2)
Composition H H H
Proper motion (right ascension) [mas/yr] 31.48269578 (0.1) 31.97588002 (0.3) 31.483 (0.1) 31.97588002
Proper motion (declination) [mas/yr] -43.01317111 (0.2) -43.07138147 (0.3) -43.013 (0.2) -43.07138147
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 17.87 (0.05)
H magnitude
K magnitude
u magnitude 19.53 (0.03) 19.42 (0.03) 19.53 (0.03) 19.44 (0.02) 19.37 (0.03)
g magnitude 18.81 (0.009) 18.81 (0.009) 18.80 (0.008) 18.81 (0.01)
r magnitude 18.59 (0.009) 18.59 (0.009) 18.59 (0.008) 18.60 (0.01)
i magnitude 18.52 (0.01) 18.52 (0.01) 18.51 (0.01) 18.53 (0.01)
z magnitude 18.49 (0.03) 18.49 (0.03) 18.50 (0.03) 18.50 (0.03)
G magnitude 18.56 (0.02) 18.58 18.56 18.56 (0.003) 18.58
BP magnitude 18.82 (0.02) 18.72 18.72
RP magnitude 18.22 (0.03) 18.20 18.20
Pan g magnitude 18.78 (0.003) 18.78 (0.003)
Pan r magnitude 18.58 (0.01) 18.58 (0.01)
Pan i magnitude 18.54 (0.006) 18.54 (0.006)
Pan z magnitude 18.55 (0.04) 18.55 (0.04)
Pan y magnitude 18.55 (0.03) 18.55 (0.03)
E(B-V) 0.014

* 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.