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Name
  DN Oph  
AAVSO UID
000-BDW-641 (No observations)  
Constellation
Ophiuchus Sequence
J2000.0
16 57 12.47 -25 22 32.4  (254.30196 -25.37567) Search nearby
B1950.0 16 54 08.34 -25 17 54.8
Proper motion
RA: 2.7 +/- 3.6 mas/yDec: 0.8 +/- 4.0 mas/ySource: UCAC4
Galactic coord. 356.848 +10.894
Other names

(Internal only)
2MASS J16571246-2522324 AN 46.1937 ASAS J165712-2522.6
ASASSN-V J165712.39-252232.4 HV 4287 HV 8978
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Variability type
M
Spectral type --
Mag. range
11.6 - <17.4 V
Discoverer --
Epoch
18 Apr 2008 (HJD 2454575.0) Ephemeris
Outburst --
Period 216.8 d
Rise/eclipse dur. --
Remarks
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References
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1 Pojmanski, G., 2002, The All Sky Automated Survey 2002AcA....52..397P
2 H.H.Swope, HB N887, 1932. 1932BHarO.887....6S
3 H.H.Swope, HB N857, 1928. 1928BHarO.857....1S
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 = 8.63H = 7.75K = 7.25J - K = 1.39
AllWISE W1 = 6.32W2 = 5.98W3 = 5.39W4 = 4.97W1 - W2 = 0.34W3 - W4 = 0.42
APASS-DR9 B = 14.06V = 12.20g' = 13.06r' = 11.48B - V = 1.86
Images
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Supporting Documents
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1 DN Oph Kasai, Kiyoshi 2017-04-19 23:11 UTC Phase plot with data from ASAS-3(mag.offset = 0.0) and APASS(mag.offset = 0.0)
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Revision History
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3 Kasai, Kiyoshi 2017-04-19 23:11 UTC Epoch, period, type and maximum magnitude from ASAS-3 data. Minimum magnitude from SPM 4.0. UCAC4 position.
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.

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