All names: * 56 Peg, GSC 02239-01475, AG+25 2759, [ZEH2003] RX J2307.1+2528 1, 2MASS J23070675+2528055, [LHC2000] J230706.70+252805.8, GEN# +1.00218356, 2E 4682, 1ES 2304+25.2, GCRV 14508, [L91b] 378, IRC +30506, PLX 5597.00, FK5 3848, TYC 2239-1475-1, TIC 436828549, NSV 14429, YZ 0 1013, SKY# 43874, PPM 115152, RX J2307.1+2528, Gaia DR3 2843604151972891904, Gaia EDR3 2843604151972891904, JP11 3587, SBC9 2639, Gaia DR2 2843604151972371840, HIC 114155, HR 8796, WEB 20271, UBV M 26841, WD 2304+251, HD 218356, uvby98 100218356, MFU 240, GC 32201, ROT 3365, IRAS 23046+2511, 1RXS J230706.8+252807, YZ 25 8859, HIP 114155, RAFGL 3026, RBS 1945, BD+24 4716, SAO 91019, 2E 2304.6+2511, PLX 5597, UBV 19801
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|
| Right ascension | 23 07 06.74 (0.1) | 23 07 06.74 (0.4) | 23 07 06.74 (0.1) | 23 07 06.36 | ||
| Declination | 25 28 05.27 (0.07) | 25 28 05.28 (0.3) | 25 28 05.77 (0.07) | 25 28 08.40 | ||
| Spectral type | K0.5II | DA2 | ||||
| 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] | 5.18 (0.1) | 6.11 (0.4) | 5.18 (0.1) | ||
| Distance | [pc] | 193.13 (4) | 163.58 (11) | 193.13 (4) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -2.747379485 (0.1) | -4.288 (0.5) | -2.747 (0.1) | ||
| Proper motion (declination) | [mas/yr] | -31.68241999 (0.08) | -32.639 (0.4) | -31.682 (0.08) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | 6.06 | |||||
| V magnitude | 4.74 | |||||
| R magnitude | 3.74 | |||||
| I magnitude | 3.07 | |||||
| J magnitude | 2.44 (0.3) | |||||
| H magnitude | 1.83 (0.2) | |||||
| K magnitude | 1.79 | |||||
| u magnitude | ||||||
| g magnitude | ||||||
| r magnitude | ||||||
| i magnitude | ||||||
| z magnitude | ||||||
| G magnitude | 4.32 (0.001) | 4.24 | 4.32 (0.003) | |||
| BP magnitude | 5.01 (0.001) | 5.03 | ||||
| RP magnitude | 3.53 (0.002) | 3.56 | ||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.023 | |||||
* 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.