HZ 9

All names: UCAC4 539-009398, TIC 245830829, USNO-B1.0 1077-00064155, WD 0429+176, Cl* Melotte 25 PELS 70, EGGR 38, 2XMM J043223.7+174503, 2RXP J043223.6+174505, Gaia DR2 3314232855652895104, [CFK96] RX 27, GSC 01270-00507, 2E 0429.5+1738, UBV M 41447, LP 415-186, WD 0429+17, Cl* Melotte 25 HZ 9, NSV 1641, FB 38, HG 7-255, VVO 395, LAMOST J043223.75+174502.6, LAWD 20, RX J043223.4+174504, 2E 1081, GEN# +5.20251673, Cl* Melotte 25 HAN 528, HZ 9, UBV 4356, Cl* Melotte 25 LEID 70, L 1239-16, 2MASS J04322373+1745026, RX J0432.3+1745, UBV 4406, Gaia EDR3 3314232855652895104, Gaia DR3 3314232855652895104, [LHD94] 042929.9+173844, CSI+17-04294, KUV 04295+1739, uvby98 520251673, WISEA J043223.83+174502.3, [TSA98] J043223.55+174455.72, PLX 997.02, [RSP2011] 412, Cl* Melotte 25 VA 673, Cl* Melotte 25 REID 308

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Gaia DR2 Stilism Limoges et al. 2015 Gianninas et al. 2011 Zuckerman et al. 2003 Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 04 32 23.88 (0.03) 04 32 23.88 (0.03) 04 32 23.76 (0.03) 04 32 23.47
Declination 17 45 02.12 (0.01) 17 45 02.14 (0.02) 17 45 02.67 (0.01) 17 45 01.80
Spectral type DA+dM DA DA3+dM DA2
Effective temperature [K] 17620.0 (427) 17620.0 (347)
log(g) [cgs] 8.02 (0.06) 8.02 (0.06)
Mass [M] 0.63 (0.03) 0.63 (0.04)
log(Luminosity) [L] -1.84
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 23.39 (0.03) 23.26 (0.04) 20.00 (6) 23.39 (0.03) 23.00 (5)
Distance [pc] 42.75 (0.06) 42.99 (0.07) 50.00 (16) 39.00 42.75 (0.06) 43.48 (9)
Composition H H
Proper motion (right ascension) [mas/yr] 109.7429126 (0.03) 109.8651201 (0.07) 109.743 (0.03)
Proper motion (declination) [mas/yr] -34.4054512 (0.02) -34.50592203 (0.04) -34.405 (0.02)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS WDMS yes
B magnitude 14.28
V magnitude 13.93
R magnitude 14.21 (0.05)
I magnitude
J magnitude 10.75 10.75 (0.02)
H magnitude 10.22 10.16 (0.02)
K magnitude 9.93 9.91 (0.02)
u magnitude
g magnitude 14.08 (0.03)
r magnitude 13.88 (0.06)
i magnitude 12.94 (0.04)
z magnitude
G magnitude 13.35 (0.002) 13.36 13.35 (0.003)
BP magnitude 14.03 (0.002) 14.03
RP magnitude 12.42 (0.003) 12.45
Pan g magnitude 14.07 (0.005)
Pan r magnitude 13.87 (0.005)
Pan i magnitude 12.94 (0.01)
Pan z magnitude 12.33 (0.001)
Pan y magnitude 12.11 (0.001)
E(B-V) 0.001

* Constant surface field

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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.