All names: SDSS J074425.43+353040.8, [HHD2009] SDSS J0744+3530, Gaia DR2 894839191829814912, TIC 4304633, GALEX J074425.4+353040, SDSS J074425.42+353040.8, SDSS J074425.43+353040.9, Gaia EDR3 894839191830182784, 2MASS J07442543+3530408, WD 0741+356, Gaia DR3 894839191830182784
| 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 | 07 44 25.41 (0.4) | 07 44 25.43 | 07 44 25.41 (0.6) | 07 44 25.43 | 07 44 25.43 (0.4) | 07 44 25.43 | 07 44 24.79 | 07 44 25.43 | |||
| Declination | 35 30 41.09 (0.3) | 35 30 40.86 | 35 30 41.08 (0.5) | 35 30 40.79 | 35 30 40.83 (0.3) | 35 30 40.86 | 35 30 33.48 | 35 30 40.87 | |||
| Spectral type | DC+M | DC+M | DZ:+M | DC+M | DZ:M | ||||||
| Effective temperature | [K] | 6300.0 (3) | 6300.0 (3) | ||||||||
| log(g) | [cgs] | 8.99 (0.01) | 10.00 (0.003) | ||||||||
| Mass | [M☉] | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 7.72 (0.5) | 7.14 (0.8) | 7.72 (0.5) | |||||||
| Distance | [pc] | 129.49 (8) | 140.00 (15) | 248.00 (22) | 129.49 (8) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -16.69197396 (0.5) | -15.95554905 (1) | -16.692 (0.5) | -17.6 | ||||||
| Proper motion (declination) | [mas/yr] | 15.91730535 (0.4) | 14.50412395 (0.9) | 15.917 (0.4) | 16.6 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | yes | ||||||||
| B magnitude | 18.70 | ||||||||||
| V magnitude | 18.88 | ||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.01 (0.07) | ||||||||||
| H magnitude | 15.50 (0.1) | ||||||||||
| K magnitude | 15.38 (0.1) | ||||||||||
| u magnitude | 19.09 (0.02) | 19.14 | 19.12 (0.02) | 19.14 (0.03) | 19.09 | 19.13 (0.03) | |||||
| g magnitude | 18.90 (0.009) | 18.91 | 18.90 (0.009) | 18.91 (0.01) | 18.90 | 18.90 (0.01) | |||||
| r magnitude | 18.87 (0.01) | 18.88 | 18.87 (0.01) | 18.88 (0.02) | 18.88 | 18.88 (0.02) | |||||
| i magnitude | 18.16 (0.009) | 18.18 | 18.16 (0.009) | 18.18 (0.02) | 18.18 | 18.18 (0.02) | |||||
| z magnitude | 17.48 (0.01) | 17.50 | 17.49 (0.01) | 17.50 (0.02) | 17.49 | 17.49 (0.02) | |||||
| G magnitude | 18.87 (0.03) | 18.72 | 18.87 (0.02) | ||||||||
| BP magnitude | 18.91 (0.03) | 18.90 | |||||||||
| RP magnitude | 17.67 (0.01) | 17.64 | |||||||||
| Pan g magnitude | 18.92 (0.008) | ||||||||||
| Pan r magnitude | 18.84 (0.01) | ||||||||||
| Pan i magnitude | 18.16 (0.005) | ||||||||||
| Pan z magnitude | 17.60 (0.01) | ||||||||||
| Pan y magnitude | 17.24 (0.01) | ||||||||||
| E(B-V) | 0.005 | ||||||||||
* 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.