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Name
  AP Her  
AAVSO UID
000-BCV-993 (143 observations)  
Constellation
Hercules Sequence
J2000.0
18 50 27.70 +15 56 25.0  (282.61542 +15.94028) Search nearby
B1950.0 18 48 12.58 +15 52 50.9
Galactic coord. 47.090 +7.405
Other names

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AAVSO 1846+15 AN 6.1925 AN 66.1924
ASAS J185028+1556.4 HD 229680 HIP 92452
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Variability type
CWA
Spectral type F2Ib-II-G0
Mag. range
10.19 - 11.18 V
Discoverer --
Epoch
24 Aug 1978 (HJD 2443745.347) Ephemeris
Outburst --
Period 10.4156 d
Rise/eclipse dur. 40%  (4.17 d)
Remarks
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1 Otero, Sebastian Alberto Period changes.
2 GCVS Team P var strongly. P = 10.400d (JD2415000 - 19000:); P = 10.3970d (JD2423700 - 24700:); P = 10.4260d (JD2424700 - 25300); P = 10.4338D (JD2425800 - 27000); P = 10.3945d (JD2427000 - 27400); P = 10.4277d (JD2433000 - 33850); P = 10.3898d (JD2433850 - 34850); P = 10.4209d (JD2434850 - 35600); P = 10.3715d (JD2435600 - 37200); DURING JD2437200 - 43800 - see Table. The light curve shape var. [A/H] = -0.8.
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References
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1 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
2 L.Szabados, Bud Mitt N77, 1981. 1981CoKon..77....1S
3 P.P.Parenago, Perem. Zvezdy 8, N3, 204, 1951. 1951QB43.P3........
4 Guthnick, P.; et al., 1925, Benennung von neu entdeckten veränderlichen
Sternen
1925AN....224..129G
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Supporting Documents
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Revision History
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4 Fernig, Leo 2023-07-05 21:42 UTC Discoverer updated from 1925AN....224..129G page 142.
3 Otero, Sebastian Alberto 2011-03-16 05:08 UTC Primary record creation. Period and epoch from ASAS-3 data. Range from ASAS-3 and Hipparcos data.
2 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.