All names: HR 3751, PPM 1634, [HFE83] 663, PMC 90-93 643, FK5 910, IRAS 09301+8132, TD1 13941, GCRV 6182, WD 0930+815, PLX 2251, TYC 4547-2323-1, WD 0937+813, GEN# +1.00081817, SKY# 18598, AG+81 278, Gaia EDR3 1144716265942885888, 2RXP J093708.8+811940, Gaia DR2 1144716265940854016, HIC 47193, UBV 9027, BD+81 302, RAFGL 1363, 2MASS J09370531+8119349, SAO 1551, WEB 8877, Gaia DR3 1144716265942885888, HD 81817, HIP 47193, GSC 04547-02323, UBV M 15418, TIC 137603530, DO 32868, PLX 2251.00, N30 2272, GC 13174, JP11 1815, ROT 1473
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|
| Right ascension | 09 37 05.17 (0.1) | 09 37 05.18 (0.2) | 09 37 05.29 (0.1) | 09 37 05.26 | ||
| Declination | 81 19 34.71 (0.1) | 81 19 34.71 (0.3) | 81 19 34.97 (0.1) | 81 19 35.40 | ||
| Spectral type | K3II-III | DA3 | ||||
| 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] | 3.54 (0.2) | 3.72 (0.3) | 3.28 (0.1) | ||
| Distance | [pc] | 282.30 (14) | 268.98 (21) | 304.88 (14) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -16.34022945 (0.2) | -16.794 (0.6) | -16.62 (0.2) | ||
| Proper motion (declination) | [mas/yr] | -16.60771236 (0.2) | -17.605 (0.5) | -16.41 (0.1) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | yes | |||||
| B magnitude | 5.74 (0.01) | |||||
| V magnitude | 4.25 (0.009) | |||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | 1.70 (0.2) | |||||
| H magnitude | 0.89 (0.2) | |||||
| K magnitude | 0.78 (0.2) | |||||
| u magnitude | ||||||
| g magnitude | ||||||
| r magnitude | ||||||
| i magnitude | ||||||
| z magnitude | ||||||
| G magnitude | 3.79 (0.005) | 3.71 | 3.79 (0.003) | |||
| BP magnitude | 4.57 (0.005) | 4.60 | ||||
| RP magnitude | 2.95 (0.003) | 3.00 | ||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.016 | |||||
* 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.