All names: WD 0706+378, CSI+37-07069 2, Gaia DR2 946030529073021440, NLTT 17476, UBV M 53684, 07102+3740N, LTT 17943, WDS J07103+3739B, GEN# +9.80087029, G87-29, USNO-B1.0 1276-00180477, WD 0706+374, WD 0706+377, G 87-29, G 107-54, uvby98 980107054, LSPM J0710+3740N, USNO 26, EGGR 51, PSO J071014.089+374015.920, UBV 6974, Gaia DR2 946247162927807104, GJ 3431 B, J0710+3740, 2MASS J07101432+3740194, G087-029, WDJ071014.34+374019.47, WD 0706+37
| Parameter | Unit | Coutu et al. 2019 | Blouin et al. 2019 | Pan-STARRS DR1 | Gaia DR2 | 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 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 10 14.16 | 07 10 14.05 (0.05) | 07 10 14.16 | 07 10 14.33 | 07 10 14.05 | 07 10 15.12 | ||||||||||
| Declination | 37 40 19.20 | 37 40 15.18 (0.05) | 37 40 19.20 | 37 40 19.42 | 37 40 15.18 | 37 40 28.56 | ||||||||||
| Spectral type | DQ | DQ | DQ | DQ | DQ7.6 | DQ | DQ | DQ | DQ | DAs | DQ8 | |||||
| Effective temperature | [K] | 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) | |||||
| log(g) | [cgs] | 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) | ||||||||
| Mass | [M☉] | 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) | |||||||
| log(Luminosity) | [L☉] | -3.63 | -3.55 (0.05) | -3.56 (0.05) | ||||||||||||
| Cooling age | [Gyr] | 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) | -6.4336 (0.02) | -6.41 | -6.4 (0.1) | -5.52 | -6 | |||||||||||
| 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] | 41.00 | 41.00 (0.05) | 41.00 (0.05) | 41.20 (2) | 41.20 (2) | 41.20 (2) | 41.20 (2) | 0.04 | 41.50 | 41.00 (0.05) | 35.00 (4) | ||||
| Distance | [pc] | 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 | 24.10 | 24.39 (0.03) | 28.57 (3) | |||
| Composition | H | He | He | He | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -227.0604748 (0.09) | -213.0 | -227.0604748 | ||||||||||||
| Proper motion (declination) | [mas/yr] | -276.6859263 (0.09) | -287.0 | -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 | 15.64 | ||||||||||||
| R magnitude | 15.38 | 15.38 | 15.40 | |||||||||||||
| I magnitude | 15.16 | 15.16 | 15.00 | |||||||||||||
| J magnitude | 15.06 (0.05) | 15.00 | 15.00 | 15.06 | ||||||||||||
| H magnitude | 14.78 (0.05) | 14.88 | 14.88 | 14.78 | ||||||||||||
| K magnitude | 14.83 (0.08) | 14.82 | 14.82 | 14.83 | ||||||||||||
| u magnitude | ||||||||||||||||
| g magnitude | ||||||||||||||||
| r magnitude | ||||||||||||||||
| i magnitude | ||||||||||||||||
| z magnitude | ||||||||||||||||
| G magnitude | 15.53 | 15.53 | ||||||||||||||
| BP magnitude | 15.68 | 15.68 | ||||||||||||||
| RP magnitude | 15.21 | 15.21 | ||||||||||||||
| Pan g magnitude | 15.71 (0.003) | 15.70 (0.003) | ||||||||||||||
| Pan r magnitude | 15.54 (0.002) | 15.54 (0.002) | ||||||||||||||
| Pan i magnitude | 15.54 (0.003) | 15.54 (0.003) | ||||||||||||||
| Pan z magnitude | 15.59 (0.004) | 15.59 (0.004) | ||||||||||||||
| Pan y magnitude | 15.65 (0.006) | 15.65 (0.006) | ||||||||||||||
* Constant surface field
Spectra without link are available upon request
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.