All names: GJ 3420, Gaia DR2 890661253803216896, TIC 165102317, LHS 1889, LP 308-10, CNS5 1742, WD 0657+320, WD 0657+32, 07008+3157, USNO-B1.0 1219-00151077, 2MASS J07005161+3157450, LSPM J0700+3157, Gaia DR3 890661253803216896, J0700+3157, EGGR 485, PM J07008+3157, PLX 1641.01, NLTT 17270, Gaia EDR3 890661253803216896, USNO 819, WDJ070051.66+315743.83, PSO J105.2167+31.9600
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Blouin et al. 2019 | Gaia DR2 | Stilism | Holberg et al. 2016 | Limoges et al. 2015 | Sion et al. 2014 | Giammichele et al. 2012 | Holberg et al. 2008 | Bergeron et al. 2001 | Bergeron et al. 1997 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 00 52.11 (0.05) | 07 00 52.09 (0.06) | 07 00 52.09 (0.06) | 07 00 51.60 | 07 00 52.11 | 07 00 51.66 (0.05) | 07 00 52.09 | 07 00 50.11 | ||||||||||||
| Declination | 31 57 34.30 (0.04) | 31 57 34.60 (0.06) | 31 57 34.60 (0.06) | 31 57 43.20 | 31 57 34.30 | 31 57 43.83 (0.04) | 31 57 34.60 | 31 58 13.80 | ||||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA10.1 | DA | DC | DA | DC: | DC10 | DC9 | |||||||
| Effective temperature | [K] | 4873.0 (40) | 4911.0 (13) | 4821.8 (31) | 4840.0 (25) | 4999.0 (15) | 4880.0 (96) | 4888.0 | 4888.0 (84) | 4990.0 (130) | 4930.0 (130) | 4906.0 (27) | ||||||||
| log(g) | [cgs] | 7.91 (0.03) | 7.95 (0.007) | 7.87 (0.03) | 7.90 (0.02) | 8.09 (0.03) | 8.02 (0.03) | 8.03 (0.03) | 8.07 (0.03) | 8.03 (0.03) | 7.93 (0.01) | |||||||||
| Mass | [M☉] | 0.524 (0.02) | 0.55 (0.006) | 0.52 (0.01) | 0.64 (0.02) | 0.59 (0.02) | 0.6 (0.02) | 0.62 (0.02) | 0.6 (0.02) | 0.537 (0.01) | ||||||||||
| log(Luminosity) | [L☉] | -4.10 | -4.10 | -4.09 (0.02) | -4.09 (0.01) | |||||||||||||||
| Cooling age | [Gyr] | 5.8500 | 5.2840 (0.2) | 6.7000 | 6.5500 | 6.5500 (0.3) | 5.9600 (0.3) | |||||||||||||
| 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] | 50.97 (0.05) | 50.97 (0.05) | 50.97 (0.07) | 50.97 (0.07) | 50.97 (0.07) | 50.97 (0.07) | 53.50 (0.9) | 53.50 (0.9) | 53.50 (0.9) | 65.83 (2) | 53.50 (0.9) | 53.50 (0.9) | 50.97 | 50.97 (0.05) | 50.97 (0.07) | 45.00 (63) | |||
| Distance | [pc] | 19.62 (0.02) | 19.62 (0.02) | 19.62 (0.03) | 19.62 (0.03) | 19.62 (0.03) | 19.62 (0.03) | 18.69 (0.3) | 18.70 (2) | 18.69 | 18.70 (0.3) | 15.19 | 18.69 (0.3) | 18.69 (0.3) | 19.62 | 19.62 (0.02) | 19.62 (0.03) | 22.22 (31) | ||
| Composition | H | H | H | H | H | H | H | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 353.8431439 (0.06) | 353.89939 (0.1) | 353.843 (0.06) | 353.89939 | |||||||||||||||
| Proper motion (declination) | [mas/yr] | -595.688853 (0.05) | -595.5616685 (0.1) | -595.689 (0.04) | -595.5616685 | |||||||||||||||
| Variability | ||||||||||||||||||||
| Magnetic | ||||||||||||||||||||
| Bd | [MG] | |||||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||||
| Binarity | ||||||||||||||||||||
| B magnitude | 17.64 | 17.64 | 17.64 | 17.53 | ||||||||||||||||
| V magnitude | 16.59 | 16.62 | 16.62 | 16.62 | ||||||||||||||||
| R magnitude | 16.09 | 16.09 | 16.09 | 15.70 | ||||||||||||||||
| I magnitude | 15.61 | 15.61 | 15.61 | |||||||||||||||||
| J magnitude | 15.03 (0.006) | 15.03 (0.04) | 14.99 | 14.99 | 15.00 | 15.03 (0.04) | ||||||||||||||
| H magnitude | 14.67 (0.05) | 14.67 (0.05) | 14.77 | 14.77 | 14.70 | 14.67 (0.05) | ||||||||||||||
| K magnitude | 14.66 (0.08) | 14.66 (0.08) | 14.69 | 14.69 | 14.64 | 14.66 (0.08) | ||||||||||||||
| u magnitude | ||||||||||||||||||||
| g magnitude | 16.97 (0.004) | |||||||||||||||||||
| r magnitude | 16.32 (0.005) | |||||||||||||||||||
| i magnitude | 16.03 (0.004) | |||||||||||||||||||
| z magnitude | 15.93 (0.005) | |||||||||||||||||||
| G magnitude | 16.33 (0.008) | 16.35 | 16.35 | 16.33 | 16.33 (0.003) | 16.35 | ||||||||||||||
| BP magnitude | 16.84 (0.008) | 16.86 | 16.86 | |||||||||||||||||
| RP magnitude | 15.68 (0.004) | 15.69 | 15.69 | |||||||||||||||||
| Pan g magnitude | 16.97 (0.005) | 16.97 (0.004) | 16.97 (0.004) | |||||||||||||||||
| Pan r magnitude | 16.32 (0.005) | 16.32 (0.005) | 16.32 (0.005) | |||||||||||||||||
| Pan i magnitude | 16.03 (0.004) | 16.03 (0.004) | 16.03 (0.004) | |||||||||||||||||
| Pan z magnitude | 15.93 (0.005) | 15.93 (0.005) | 15.93 (0.005) | |||||||||||||||||
| Pan y magnitude | 15.90 (0.02) | 15.90 (0.02) | 15.90 (0.02) | |||||||||||||||||
| 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.