All names: PMC 90-93 560, SRS 30797, FK5 797, N30 4690, TIC 76956031, HD 202109, GSC 02702-02764, RAFGL 2723, 2MASS J21125619+3013370, PLX 5103.00, CSI+29 4348 1, WDS J21129+3014AaAb, UBV 18350, HIP 104732, IRC +30472, * zet Cyg, HIC 104732, IRAS 21107+3001, CCDM J21129+3014A, Gaia EDR3 1851924859353116928, [L91b] 339, GCRV 13338, TD1 27823, BD+29 4348, UBV M 25545, TYC 2702-2764-1, * 64 Cyg, ** BAS 7, Gaia DR2 1851924859347035520, IDS 21086+2949 AD, ** FYM 141A, WEB 19047, PPM 86219, HR 8115, GEN# +1.00202109, JP11 3322, uvby98 100202109, ROT 3090, Gaia DR3 1851924859353116928, YZ 30 12254, PLX 5103, WDS J21129+3014A, SKY# 40368, SBC9 2958, WD 2110+300, ** BUP 227A, GC 29661, SAO 71070, MFU 232, AG+30 2302
| 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.