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Name
  SY Eri  
AAVSO UID
000-BBH-968 (1269 observations)  
Constellation
Eridanus Sequence
J2000.0
05 09 48.27 -05 30 55.1  (77.45113 -5.51531) Search nearby
B1950.0 05 07 20.88 -05 34 37.8
Proper motion
RA: -2.914 +/- 0.052 mas/yDec: -5.209 +/- 0.041 mas/ySource: Gaia DR1
Galactic coord. 206.007 -25.082
Other names

(Internal only)
AAVSO 0504-05 ASAS J050948-0530.9 BD-05 1174
HD 33404 HIP 24025 IRC -10083
SAO 131832    
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Variability type
SRB
Spectral type C6,3(N0)
Mag. range
7.93 - 8.85 V
Discoverer --
Epoch
23 Jul 2007 (HJD 2454305.0) Ephemeris
Outburst --
Period 166.2 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 C.Payne-Gaposchkin, HA 118, N3, 1952. 1952AnHar.118....1P
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 = 3.98H = 2.79K = 2.24J - K = 1.74
AllWISE W3 = 1.55W4 = 1.07W3 - W4 = 0.48
APASS-DR9 B = 11.04g' = 10.19
SDSS-DR12 u = 14.52g = 9.68r = 10.43i = 10.43z = 8.84u - g = 4.84r - i = 0.00
Images
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Supporting Documents
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Revision History
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3 Otero, Sebastian Alberto 2026-06-24 21:25 UTC Period, epoch and range from ASAS-3 and AAVSO 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.

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