All names: SDSS J130251.07+442918.4, [HHD2009] SDSS J1302+4429, Gaia DR2 1529463280312372864, WIRED J130251.11+442918.4, Gaia EDR3 1529463280312372864, SDSS J130251.11+442918.4, WD 1300+447, WISEA J130251.13+442919.0, SDSS J130251.12+442918.4, WISE J130251.13+442919.3, GALEX J130251.1+442918
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 13 02 51.06 (0.2) | 13 02 51.12 | 13 02 51.06 (0.2) | 13 02 51.11 | 13 02 51.12 | 13 02 51.12 | 13 02 51.22 | 13 02 51.12 | ||||
| Declination | 44 29 18.47 (0.2) | 44 29 18.42 | 44 29 18.47 (0.3) | 44 29 18.38 | 44 29 18.42 | 44 29 18.43 | 44 29 12.12 | 44 29 18.45 | ||||
| Spectral type | DA+M | DA | DA+M | DA+M | DA d | DA+M | ||||||
| Effective temperature | [K] | 18330.0 (544) | 18820.0 (580) | 9953.0 (59) | 9871.0 (66) | |||||||
| log(g) | [cgs] | 7.81 (0.1) | 7.71 (0.1) | 8.41 (0.07) | 8.32 (0.07) | |||||||
| Mass | [M☉] | 0.52 (0.06) | 0.47 (0.05) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.0575 | ||||||||||
| 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] | 1.28 (0.4) | 0.49 (0.4) | |||||||||
| Distance | [pc] | 779.84 (229) | 2025.88 (1721) | 799.00 (136) | ||||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -53.52988747 (0.2) | -53.42986791 (0.5) | -52.0 (3) | -51.2 | |||||||
| Proper motion (declination) | [mas/yr] | 6.97769191 (0.3) | 8.334181332 (0.6) | 6.0 (3) | 6.8 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | WDMS | |||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 18.77 (0.02) | 18.78 | 18.77 (0.02) | 18.78 (0.02) | 18.78 | 18.78 (0.02) | ||||||
| g magnitude | 18.57 (0.008) | 18.59 | 18.57 (0.008) | 18.59 (0.02) | 18.59 | 18.59 (0.02) | ||||||
| r magnitude | 18.79 (0.01) | 18.84 | 18.80 (0.01) | 18.84 (0.03) | 18.84 | 18.84 (0.03) | ||||||
| i magnitude | 18.52 (0.01) | 18.58 | 18.52 (0.01) | 18.58 (0.03) | 18.58 | 18.57 (0.03) | ||||||
| z magnitude | 18.06 (0.02) | 18.10 | 18.06 (0.02) | 18.10 (0.03) | 18.10 | 18.11 (0.03) | ||||||
| G magnitude | 18.85 (0.01) | 18.81 | ||||||||||
| BP magnitude | 18.68 (0.01) | 18.65 | ||||||||||
| RP magnitude | 18.15 (0.02) | 18.16 | ||||||||||
| Pan g magnitude | 18.63 (0.01) | |||||||||||
| Pan r magnitude | 18.86 (0.01) | |||||||||||
| Pan i magnitude | 18.60 (0.04) | |||||||||||
| Pan z magnitude | 18.26 (0.01) | |||||||||||
| Pan y magnitude | 17.99 (0.008) | |||||||||||
| E(B-V) | 0.018 | |||||||||||
* 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.