All names: GEN# +9.80087029, 2MASS J07101432+3740194, Gaia EDR3 946030529073021440, TIC 321104190, WD 0706+37, GJ 3431, 07102+3740N, UBV 6974, Gaia DR3 946030529073021440, J0710+3740, CNS5 1786, G087-029, PSO J107.5587+37.6710, LSPM J0710+3740N, USNO-B1.0 1276-00180477, WDS J07103+3739B, G 87-29, USNO 26, EGGR 51, CSI+37-07069 2, WDJ071014.34+374019.47, Gaia DR2 946030529073021440, LTT 17943, PM J07102+3740N, GALEX J071014.2+374018, G87-29, NLTT 17476, uvby98 980107054, G 107-54, WD 0706+377, UBV M 53684
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Coutu et al. 2019 | Blouin et al. 2019 | Gaia DR2 | Stilism | Holberg et al. 2016 | Limoges et al. 2015 | Sion et al. 2014 | Dufour et al. 2005 | Bergeron et al. 2001 | Bergeron et al. 1997 | Wegner and Yackovich 1984 | Koester et al. 1982a | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 10 14.04 (0.03) | 07 10 14.05 (0.05) | 07 10 14.16 | 07 10 14.05 (0.05) | 07 10 14.16 | 07 10 14.04 | 07 10 14.34 (0.03) | 07 10 14.05 | 07 10 15.12 | |||||||||||||
| Declination | 37 40 15.05 (0.03) | 37 40 15.18 (0.05) | 37 40 19.20 | 37 40 15.18 (0.05) | 37 40 19.20 | 37 40 15.05 | 37 40 19.47 (0.03) | 37 40 15.18 | 37 40 28.56 | |||||||||||||
| Spectral type | DQ | DQ | DQ | DQ | DQ | DQ | DQ | DQ7.6 | DQ | DQ | DQ | DQ | DC | DQ8 | DQ8 | |||||||
| Effective temperature | [K] | 6807.0 (41) | 6583.0 (14) | 6828.3 (33) | 6643.0 (159) | 6650.0 (50) | 6591.0 (140) | 6060.0 (562) | 6590.0 | 6590.0 (140) | 6990.0 (180) | 7030.0 (180) | 7000.0 | 6800.0 (300) | 6652.0 (42) | |||||||
| log(g) | [cgs] | 7.96 (0.02) | 7.92 (0.004) | 7.97 (0.02) | 7.94 | 7.95 (0.02) | 7.95 (0.1) | 7.82 (0.1) | 7.98 (0.1) | 8.14 (0.09) | 8.17 (0.09) | 7.96 (0.01) | ||||||||||
| Mass | [M☉] | 0.55 (0.01) | 0.527 (0.004) | 0.5397 | 0.544 (0.01) | 0.56 (0.05) | 0.47 (0.05) | 0.56 (0.06) | 0.66 (0.05) | 0.68 (0.06) | 0.56 (0.1) | 0.549 (0.009) | ||||||||||
| log(Luminosity) | [L☉] | -3.63 | -3.55 (0.05) | -3.56 (0.05) | ||||||||||||||||||
| Cooling age | [Gyr] | 1.7100 | 1.6400 | 1.6470 (0.05) | 1.6900 | 2.0900 (0.3) | 2.5100 (0.4) | 1.0000 | ||||||||||||||
| log(H/He) | <-2.7 | |||||||||||||||||||||
| log(C/He) | -6.49 | -6.4336 (0.02) | -6.41 | -6.4 (0.1) | -5.52 | -6 | ||||||||||||||||
| log(Ca/He) | ||||||||||||||||||||||
| log(Ca/H) | ||||||||||||||||||||||
| log(N/He) | <-8 | |||||||||||||||||||||
| log(O/He) | <-8 | |||||||||||||||||||||
| log(Na/He) | ||||||||||||||||||||||
| log(Mg/He) | ||||||||||||||||||||||
| log(Al/He) | ||||||||||||||||||||||
| log(Si/He) | ||||||||||||||||||||||
| log(P/He) | ||||||||||||||||||||||
| log(S/He) | ||||||||||||||||||||||
| log(Cl/He) | ||||||||||||||||||||||
| log(Sc/He) | ||||||||||||||||||||||
| log(Ti/He) | ||||||||||||||||||||||
| log(V/He) | ||||||||||||||||||||||
| log(Cr/He) | ||||||||||||||||||||||
| log(Mn/He) | ||||||||||||||||||||||
| log(Fe/He) | ||||||||||||||||||||||
| log(Co/He) | ||||||||||||||||||||||
| log(Ni/He) | ||||||||||||||||||||||
| log(Cu/He) | ||||||||||||||||||||||
| log(Zn/He) | ||||||||||||||||||||||
| log(Ga/He) | ||||||||||||||||||||||
| log(Ge/He) | ||||||||||||||||||||||
| log(Sr/He) | ||||||||||||||||||||||
| Parallax | [mas] | 41.03 (0.04) | 41.03 (0.04) | 41.00 (0.05) | 41.00 (0.05) | 41.00 | 41.00 (0.05) | 41.00 (0.05) | 41.20 (2) | 41.20 (2) | 41.20 (2) | 41.20 (2) | 0.04 | 41.03 | 41.03 (0.04) | 41.00 (0.05) | 35.00 (4) | |||||
| Distance | [pc] | 24.37 (0.02) | 24.37 (0.02) | 24.39 (0.03) | 24.39 (0.03) | 24.39 (0.03) | 24.39 (0.03) | 24.39 (0.03) | 24.27 (1) | 24.30 (1) | 24.27 | 24.27 (1) | 24.27 (1) | 22727.27 | 24.37 | 24.37 (0.02) | 24.39 (0.03) | 28.57 (3) | ||||
| Composition | He | He | He | He | H | He | He | He | He | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -227.0655576 (0.04) | -227.0604748 (0.09) | -227.066 (0.04) | -227.0604748 | |||||||||||||||||
| Proper motion (declination) | [mas/yr] | -276.6090562 (0.04) | -276.6859263 (0.09) | -276.609 (0.04) | -276.6859263 | |||||||||||||||||
| Variability | ||||||||||||||||||||||
| Magnetic | ||||||||||||||||||||||
| Bd | [MG] | |||||||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||||||
| Binarity | WDMS | |||||||||||||||||||||
| B magnitude | 15.94 | 15.94 | 15.94 | |||||||||||||||||||
| V magnitude | 15.66 | 15.64 | 15.64 | |||||||||||||||||||
| R magnitude | 15.38 | 15.38 | 15.40 | |||||||||||||||||||
| I magnitude | 15.16 | 15.16 | ||||||||||||||||||||
| J magnitude | 14.98 (0.005) | 15.06 (0.05) | 15.00 | 15.00 | 15.06 (0.05) | |||||||||||||||||
| H magnitude | 14.78 (0.05) | 14.78 (0.05) | 14.88 | 14.88 | 14.78 (0.05) | |||||||||||||||||
| K magnitude | 14.83 (0.08) | 14.83 (0.08) | 14.82 | 14.82 | 14.83 (0.08) | |||||||||||||||||
| u magnitude | ||||||||||||||||||||||
| g magnitude | 15.71 (0.003) | |||||||||||||||||||||
| r magnitude | 15.54 (0.002) | |||||||||||||||||||||
| i magnitude | 15.54 (0.003) | |||||||||||||||||||||
| z magnitude | 15.59 (0.004) | |||||||||||||||||||||
| G magnitude | 15.51 (0.002) | 15.53 | 15.53 | 15.51 | 15.51 (0.003) | 15.53 | ||||||||||||||||
| BP magnitude | 15.69 (0.002) | 15.68 | 15.68 | |||||||||||||||||||
| RP magnitude | 15.20 (0.002) | 15.21 | 15.21 | |||||||||||||||||||
| Pan g magnitude | 15.70 (0.004) | 15.71 (0.003) | 15.71 (0.003) | |||||||||||||||||||
| Pan r magnitude | 15.54 (0.002) | 15.54 (0.002) | 15.54 (0.002) | |||||||||||||||||||
| Pan i magnitude | 15.54 (0.002) | 15.54 (0.003) | 15.54 (0.003) | |||||||||||||||||||
| Pan z magnitude | 15.59 (0.004) | 15.59 (0.004) | 15.59 (0.004) | |||||||||||||||||||
| Pan y magnitude | 15.65 (0.007) | 15.65 (0.006) | 15.65 (0.006) | |||||||||||||||||||
| E(B-V) | 0.000 | |||||||||||||||||||||
* Constant surface field
Spectra without link are available upon request
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.