All names: SDSS J114012.00+301308.8, WIRED J114012.10+301308.8, GALEX J114012.1+301309, SDSS J114012.10+301308.8, WD 1137+304, Gaia DR2 4020982536095246720, Gaia EDR3 4020982536095246720, [HHD2009] SDSS J1140+3013, Gaia DR3 4020982536095246720
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 11 40 12.10 (0.3) | 11 40 12.10 | 11 40 12.10 (0.4) | 11 40 12.10 | 11 40 12.10 (0.3) | 11 40 11.35 | 11 40 12.10 | ||||
| Declination | 30 13 08.89 (0.4) | 30 13 08.83 | 30 13 08.89 (0.4) | 30 13 08.80 | 30 13 08.76 (0.4) | 30 13 04.08 | 30 13 08.82 | ||||
| Spectral type | DA+M | DA+M | DA+M | DA d | DA+M | ||||||
| Effective temperature | [K] | 32255.0 (1232) | 31853.0 (1204) | 8981.0 (123) | |||||||
| log(g) | [cgs] | 7.79 (0.3) | 7.77 (0.3) | 9.49 (0.1) | |||||||
| Mass | [M☉] | 0.55 (0.1) | 0.54 (0.1) | ||||||||
| log(Luminosity) | [L☉] | -0.63 (0.2) | |||||||||
| Cooling age | [Gyr] | 0.0069 (0.002) | |||||||||
| 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] | 0.19 (0.5) | 0.73 (0.6) | 0.19 (0.5) | |||||||
| Distance | [pc] | 5196.20 (12705) | 1367.97 (1049) | 488.00 (64) | 5197.51 (12710) | ||||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -4.354752683 (0.4) | -3.793280732 (0.8) | -4.355 (0.4) | |||||||
| Proper motion (declination) | [mas/yr] | 8.222427701 (0.5) | 6.820409608 (0.8) | 8.222 (0.5) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | |||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 19.35 (0.02) | 19.35 | 19.37 (0.03) | 19.35 | 19.36 (0.03) | ||||||
| g magnitude | 19.59 (0.01) | 19.58 | 19.59 (0.01) | 19.58 | 19.60 (0.02) | ||||||
| r magnitude | 19.80 (0.02) | 19.80 | 19.81 (0.02) | 19.79 | 19.82 (0.02) | ||||||
| i magnitude | 19.45 (0.02) | 19.44 | 19.46 (0.02) | 19.43 | 19.46 (0.03) | ||||||
| z magnitude | 19.20 (0.06) | 19.20 | 19.21 (0.06) | 19.20 | 19.23 (0.06) | ||||||
| G magnitude | 19.53 (0.04) | 19.56 | 19.53 (0.005) | ||||||||
| BP magnitude | 19.72 (0.04) | 19.66 | |||||||||
| RP magnitude | 19.11 (0.07) | 19.07 | |||||||||
| Pan g magnitude | 19.64 (0.009) | ||||||||||
| Pan r magnitude | 19.84 (0.01) | ||||||||||
| Pan i magnitude | 19.55 (0.02) | ||||||||||
| Pan z magnitude | 19.19 (0.02) | ||||||||||
| Pan y magnitude | 19.00 (0.03) | ||||||||||
| E(B-V) | 0.020 | ||||||||||
* 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.