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Name
Z And
AAVSO UID
Constellation
J2000.0
B1950.0
23 31 15.35 +48 32 31.1
Proper motion
RA: -1.577 +/- 0.111 mas/y Dec: -3.031 +/- 0.134 mas/y Source: Gaia DR1
Galactic coord.
109.979 -12.088
Other names(Internal only)
1SWASP J233339.95+484905.9
1SXPS J233339.8+484903
2E 2331.6+4834
2E 4735
2MASS J23333994+4849059
2RXP J233339.7+484900
2SXPS 7969
2XMM J233339.9+484906
3XMMJ233339.9+484906
4XMM J233339.9+484906
AAVSO 2328+48
AN 41.1901
ASASSN-V J233340.09+484907.0
BD+48 4093
GALEX J233339.7+484904
GALEX J233339.8+484905
GSC 03645-02066
HD 221650
HIP 116287
HV 193
IRAS 23312+4832
MWC 416
NSVS 3569143
SAO 53146
TYC 3645-2066-1
WISE J233339.94+484906.0
WISEA J233339.95+484905.7
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Variability type
ZAND
Spectral type
M2III+B1eq
Mag. range
7.7 - 11.3 V
Discoverer
Williamina Paton Stevens Fleming (1901)
Epoch
Outburst
--
Period
759 d
Rise/eclipse dur.
--
Remarks
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1
Schmeer, Patrick
Gaia DR3 parallax 0.487 ± 0.022 mas (distance 1.92 ± 0.08 kpc).
2
GCVS Team
The light curve is characterized by outbursts up to 4m with intervals of 10 - 20 years. In the intervals cyclic variations are observed with the mean period of 632d and variations with cycles of several days and Delta(m) ~ 0.1m - 0.5m. The spectrum is symbiotic, with features of a late M giant, narrow low-excitation emission lines (Bleq) and forbidden lines characteristic of highly excited nebulae.
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References
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1
Dimitrov D., Popov V., 2007, Peremennye Zvezdy 27, 2
2007PZ.....27....2D
2
Fekel, F. C.; Hinkle, K. H.; Joyce, R. R.; Skrutskie, M. F., 2000, Infrared
2000AJ....120.3255F
3
J.A.Mattei, JRAS Can 72, N1, 61- 64, 1978.
1978JRASC..72...61M
4
Cannon, A. J., 1907, Second catalogue of variable stars
1907AnHar..55....1C
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Location
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AAVSO Light Curve
AAVSO WebObs
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Hipparcos Epoch Photometry Plot
NSVS
CRTS
ZTF
SuperWASP
Pan-STARRS1 Data
Pan-STARRS1 Images
SkyMorph
Kamogata Wide-field Survey (KWS)
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Catalog Data
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service . These data may not be complete.
2MASS
J = 6.19 H = 5.29 K = 4.89 J - K = 1.30
AllWISE
W1 = 4.60 W2 = 4.40 W3 = 4.09 W4 = 3.48 W1 - W2 = 0.20 W3 - W4 = 0.61
SDSS-DR12
u = 12.10 g = 11.11 r = 9.47 i = 8.70 z = 8.81 u - g = 0.99 r - i = 0.77
Images
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Supporting Documents
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Campaigns/Programs
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Revision History
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