All names: SDSS J073942.72+171438.8, TIC 16134935, SDSS J073942.61+171438.6, GALEX J073942.5+171440, Gaia DR3 3169103157645274880, Gaia EDR3 3169103157645274880, SDSS J073942.60+171438.6, WD 0736+173, 2MASS J07394262+1714388, Gaia DR2 3169103157645274880
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 39 42.58 (0.2) | 07 39 42.60 | 07 39 42.58 (0.3) | 07 39 42.60 | 07 39 42.62 (0.2) | 07 39 42.67 | |||
| Declination | 17 14 38.34 (0.2) | 17 14 38.50 | 17 14 38.35 (0.2) | 17 14 38.62 | 17 14 38.64 (0.2) | 17 14 33.36 | |||
| Spectral type | DC+M | DC+M | DC M | ||||||
| Effective temperature | [K] | ||||||||
| log(g) | [cgs] | ||||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 4.24 (0.2) | 4.28 (0.3) | 4.24 (0.2) | |||||
| Distance | [pc] | 235.78 (12) | 233.90 (15) | 546.00 (72) | 235.78 (12) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -34.80299238 (0.3) | -35.39480452 (0.5) | -34.803 (0.3) | |||||
| Proper motion (declination) | [mas/yr] | -18.48288452 (0.2) | -18.77195051 (0.4) | -18.483 (0.2) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | ||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.04 (0.09) | ||||||||
| H magnitude | 15.38 (0.1) | ||||||||
| K magnitude | 15.00 (0.1) | ||||||||
| u magnitude | 20.68 (0.06) | 20.66 | 20.69 (0.07) | 20.65 | |||||
| g magnitude | 20.03 (0.02) | 19.99 | 19.99 (0.02) | 19.98 | |||||
| r magnitude | 19.40 (0.01) | 19.38 | 19.39 (0.01) | 19.37 | |||||
| i magnitude | 18.21 (0.009) | 18.24 | 18.25 (0.009) | 18.23 | |||||
| z magnitude | 17.45 (0.01) | 17.39 | 17.39 (0.01) | 17.37 | |||||
| G magnitude | 18.81 (0.07) | 18.84 | 18.81 (0.004) | ||||||
| BP magnitude | 19.83 (0.07) | 20.04 | |||||||
| RP magnitude | 17.73 (0.02) | 17.71 | |||||||
| Pan g magnitude | 19.95 (0.008) | ||||||||
| Pan r magnitude | 19.40 (0.01) | ||||||||
| Pan i magnitude | 18.26 (0.006) | ||||||||
| Pan z magnitude | 17.58 (0.008) | ||||||||
| Pan y magnitude | 17.26 (0.04) | ||||||||
| E(B-V) | 0.011 | ||||||||
* 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.