All names: SDSS J112722.01+424933.6, Gaia EDR3 771907263493511296, Gaia DR3 771907263493511296, USNO-A2.0 1275-07919362, [HHD2009] SDSS J1127+4249, 2MASS J11272201+4249339, SDSS J112722.00+424933.5, GALEX J112722.0+424933, Gaia DR2 771907259197440768, WD 1124+431, TIC 148678070
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 11 27 21.96 (0.4) | 11 27 22.00 | 11 27 21.96 (0.7) | 11 27 22.00 | 11 27 22.01 (0.4) | 11 27 22.01 | 11 27 21.94 | 11 27 22.01 | |||
| Declination | 42 49 33.27 (0.5) | 42 49 33.55 | 42 49 33.28 (0.6) | 42 49 33.49 | 42 49 33.54 (0.5) | 42 49 33.55 | 42 49 28.92 | 42 49 33.56 | |||
| Spectral type | DA+M | DA+M | DA+M | DA d | DA+M | ||||||
| Effective temperature | [K] | 11433.0 (566) | 6560.0 (115) | 6315.0 (21) | |||||||
| log(g) | [cgs] | 8.17 (0.3) | 5.02 (0.03) | 7.00 (0.1) | |||||||
| Mass | [M☉] | 0.71 (0.2) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 1.24 (0.7) | 2.67 (0.8) | 1.24 (0.7) | |||||||
| Distance | [pc] | 808.22 (456) | 374.24 (106) | 378.00 (21) | 808.21 (456) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -34.74689112 (0.7) | -32.06977882 (1) | -34.747 (0.7) | -35.7 | ||||||
| Proper motion (declination) | [mas/yr] | -16.49553973 (0.7) | -17.72787514 (2) | -16.496 (0.7) | -17.8 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||
| B magnitude | 18.90 (0.3) | ||||||||||
| V magnitude | |||||||||||
| R magnitude | 19.20 (0.3) | ||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.61 (0.1) | ||||||||||
| H magnitude | 16.43 (0.2) | ||||||||||
| K magnitude | |||||||||||
| u magnitude | 19.94 (0.04) | 19.99 | 19.95 (0.05) | 19.99 (0.06) | 19.99 | 19.98 (0.06) | |||||
| g magnitude | 19.53 (0.01) | 19.56 | 19.51 (0.01) | 19.56 (0.02) | 19.56 | 19.55 (0.02) | |||||
| r magnitude | 19.50 (0.02) | 19.59 | 19.52 (0.02) | 19.59 (0.02) | 19.59 | 19.58 (0.02) | |||||
| i magnitude | 18.87 (0.01) | 18.95 | 18.87 (0.01) | 18.95 (0.02) | 18.95 | 18.94 (0.02) | |||||
| z magnitude | 18.17 (0.02) | 18.27 | 18.18 (0.02) | 18.27 (0.03) | 18.27 | 18.26 (0.02) | |||||
| G magnitude | 19.72 (0.05) | 19.64 | 19.72 (0.009) | ||||||||
| BP magnitude | 19.63 (0.05) | 19.55 | |||||||||
| RP magnitude | 18.45 (0.05) | 18.42 | |||||||||
| Pan g magnitude | 19.55 (0.009) | ||||||||||
| Pan r magnitude | 19.53 (0.01) | ||||||||||
| Pan i magnitude | 18.95 (0.01) | ||||||||||
| Pan z magnitude | 18.37 (0.009) | ||||||||||
| Pan y magnitude | 18.03 (0.009) | ||||||||||
| E(B-V) | 0.017 | ||||||||||
* 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.