WD 1722+279

All names: WDJ172413.32+275655.30, Gaia DR2 4598266758185956864, WD 1722+279, J1724+2756, GALEX J172413.2+275655, GALEX J172413.4+275652, Gaia DR3 4598266758185956864, 2MASS J17241331+2756556, SDSS J172413.33+275655.0, SDSS J172413.32+275655.3, Gaia EDR3 4598266758185956864, TIC 423026371, SDSS J172413.32+275655.2

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 O'Brien et al. 2024 Caron et al. 2023 Kilic et al. 2020 McCleery et al. 2020 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999) Vincent et al. 2023
Right ascension 17 24 13.37 (0.04) 17 24 13.32 17 24 13.37 (0.06) 17 24 13.37 (0.06) 17 24 13.37 17 24 13.32 (0.04) 17 24 13.37 17 24 12.77
Declination 27 56 54.35 (0.05) 27 56 55.26 27 56 54.38 (0.07) 27 56 54.38 (0.07) 27 56 54.35 27 56 55.30 (0.05) 27 56 54.38 27 56 49.92
Spectral type DA DA DA DA DA DA DA DA DA DA8.2 DA
Effective temperature [K] 6114.0 (20) 5983.0 (57) 6067.0 (18) 6115.0 (20) 5932.5 (35) 6042.0 6011.0 (36)
log(g) [cgs] 8.30 (0.006) 8.24 (0.03) 8.29 (0.006) 8.30 (0.007) 8.23 (0.02) 8.28 8.25 (0.01)
Mass [M] 0.778 (0.006) 0.738 (0.02) 0.772 (0.006) 0.781 (0.007) 0.764 0.748 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 4.3700 4.1100
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] 25.94 (0.06) 25.94 (0.06) 26.03 (0.09) 26.03 (0.09) 26.03 (0.09) 25.94 25.94 (0.06) 26.03 (0.09)
Distance [pc] 38.56 (0.09) 38.55 (0.09) 38.42 (0.1) 38.42 (0.1) 38.42 (0.1) 38.56 38.56 (0.09) 38.42 (0.1)
Composition H H H H
Proper motion (right ascension) [mas/yr] 45.95585509 (0.06) 45.90136664 (0.1) 45.956 (0.06) 45.901
Proper motion (declination) [mas/yr] -59.6540242 (0.06) -59.64799163 (0.1) -59.654 (0.07) -59.648
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 16.41 (0.01) 16.51 (0.1)
H magnitude
K magnitude
u magnitude 18.50 (0.02) 18.55 (0.02) 18.49 (0.02) 18.53 (0.02) 18.25
g magnitude 17.66 (0.005) 17.66 (0.005) 17.68 (0.005) 17.47
r magnitude 17.31 (0.005) 17.30 (0.005) 17.30 (0.005) 17.17
i magnitude 17.17 (0.006) 17.17 (0.006) 17.17 (0.006) 17.06
z magnitude 17.14 (0.01) 17.14 (0.01) 17.14 (0.01) 17.06
G magnitude 17.31 (0.006) 17.33 17.33 17.31 17.31 (0.003) 17.33
BP magnitude 17.62 (0.006) 17.62 17.62
RP magnitude 16.85 (0.005) 16.85 16.85
Pan g magnitude 17.63 (0.003) 17.63 (0.004)
Pan r magnitude 17.32 (0.005) 17.32 (0.005)
Pan i magnitude 17.20 (0.004) 17.20 (0.005)
Pan z magnitude 17.17 (0.004) 17.17 (0.004)
Pan y magnitude 17.19 (0.01) 17.19 (0.01)
E(B-V) 0.003

* 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.