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Name
  V0939 Her  
AAVSO UID
000-BCW-069 (3741 observations)  
Constellation
Hercules Sequence
J2000.0
17 10 18.53 +40 41 23.8  (257.57721 +40.68994) Search nearby
B1950.0 17 08 40.86 +40 45 01.4
Proper motion
RA: 15.26 +/- 0.69 mas/yDec: 29.18 +/- 0.90 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 65.181 +35.838
Other names

(Internal only)
AAVSO 1707+40 ASASSN-V J171018.46+404125.3 BD+40 3110
HD 155523 HIP 84004 IRAS 17086+4045
IRC +40292 SAO 46531 TYC 3077-997-1
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Variability type
SRB
Spectral type M7(III)e
Mag. range
7.47 - 8.50 V
Discoverer --
Epoch
--
Outburst --
Period 67.6 d
Rise/eclipse dur. --
Remarks
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1 2020JAVSO..48...50P Long secondary period (LSP) 417 d.
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References
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1 Percy, J. R., 2020, Period Analysis of All-Sky Automated Survey for
Supernovae (ASAS-SN) Data on a Sample of “Irregular” Pulsating Red Giants		 2020JAVSO..48...50P
2 14th General Catalogue of MK Spectral Classification (Buscombe 1999) 2001yCat.3222....0B
3 European Space Agency, 1997, The Hipparcos and Tycho Catalogues, ESA
SP-1200		 1997yCat.1239....0E
External Links
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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 = 1.83H = 0.75K = 0.68J - K = 1.15
AllWISE W3 = 0.01W4 = -0.31W3 - W4 = 0.33
APASS-DR9 B = 9.03V = 7.72g' = 8.34r' = 7.10B - V = 1.31
GALEX-DR5 FUV = 21.21NUV = 18.55FUV - NUV = 2.66
SDSS-DR12 u = 12.91g = 9.20r = 7.43i = 9.59z = 5.72u - g = 3.70r - i = -2.16
Images
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Supporting Documents
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1 Light curve Otero, Sebastian Alberto 2011-07-14 00:45 UTC Light curve with Hipparcos data calibrated to V using Tycho data.
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Campaigns/Programs
 Binocular program
Revision History
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5 Rodriguez, David R.V. 2023-03-22 20:24 UTC Type and period from 2020JAVSO..48...50P.
4 Otero, Sebastian Alberto 2011-07-14 00:37 UTC Spectral type from Buscombe (1999). Range from Hipparcos data calibrated with Tycho.
3 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
2 Admin, VSX 2007-03-23 19:53 UTC Added spectral type from [1997yCat.1239....0E].
1 Admin, VSX 2005-12-18 01:33 UTC Initial database population.

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