All names: * 64 Cyg, CSI+29 4348 1, WDS J21129+3014A, N30 4690, HR 8115, TIC 76956031, PPM 86219, IRAS 21107+3001, WEB 19047, GEN# +1.00202109, Gaia EDR3 1851924859353116928, GSC 02702-02764, IRC +30472, uvby98 100202109, JP11 3322, SBC9 2958, RAFGL 2723, AG+30 2302, ** BAS 7, ** BUP 227A, TD1 27823, PMC 90-93 560, TYC 2702-2764-1, UBV M 25545, [L91b] 339, CCDM J21129+3014A, GCRV 13338, HIP 104732, HIC 104732, GC 29661, HD 202109, SAO 71070, BD+29 4348, UBV 18350, YZ 30 12254, FK5 797, WDS J21129+3014AaAb, 2MASS J21125619+3013370, SKY# 40368, IDS 21086+2949 AD, PLX 5103, ** FYM 141A, SRS 30797, WD 2110+300, Gaia DR3 1851924859353116928, PLX 5103.00, * zet Cyg, Gaia DR2 1851924859347035520, MFU 232, ROT 3090
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|
| Right ascension | 21 12 56.18 (0.08) | 21 12 56.18 (0.3) | 21 12 56.19 (0.08) | 21 12 55.82 | ||
| Declination | 30 13 36.11 (0.09) | 30 13 36.13 (0.3) | 30 13 36.84 (0.09) | 30 13 36.48 | ||
| Spectral type | G8+III-IIIaBa0.5 | DA4 | ||||
| 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] | 21.81 (0.1) | 20.30 (0.4) | 21.81 (0.1) | ||
| Distance | [pc] | 45.84 (0.3) | 49.26 (0.9) | 45.84 (0.3) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -3.791525206 (0.1) | 1.862 (0.6) | -3.792 (0.1) | ||
| Proper motion (declination) | [mas/yr] | -45.42939002 (0.1) | -45.744 (0.5) | -45.429 (0.1) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | 4.20 | |||||
| V magnitude | 3.21 | |||||
| R magnitude | 2.52 | |||||
| I magnitude | 2.04 | |||||
| J magnitude | 1.60 | |||||
| H magnitude | 1.15 | |||||
| K magnitude | 1.08 | |||||
| u magnitude | ||||||
| g magnitude | ||||||
| r magnitude | ||||||
| i magnitude | ||||||
| z magnitude | ||||||
| G magnitude | 2.98 (0.01) | 2.84 | 2.98 (0.003) | |||
| BP magnitude | 3.67 (0.01) | 3.71 | ||||
| RP magnitude | 2.48 (0.008) | 2.51 | ||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.003 | |||||
* 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.