(IAAC) Obj: R CrB (variable) - Inst: 7x50 binoculars

• To: Internet Amateur Astronomers Catalog <netastrocatalog@atmob.org>, Webb Society Variables via John Isles <2032694@mcimail.com>
• Subject: (IAAC) Obj: R CrB (variable) - Inst: 7x50 binoculars
• From: Lew Gramer <dedalus@alum.mit.edu>
• Date: Wed, 30 Jul 97 13:49:22 -0400
• Cc: Lew Gramer (me) <dedalus>
• Reply-To: netastrocatalog-announce@atmob.org
• Sender: owner-netastrocatalog

Observer: Lew Gramer
Your skills: Intermediate
Date and UT of Observation: 1997-07-26/27, 03:45 UT
Location: Medford, MA, USA (42N)
Site classification: urban
Limiting magnitude: 5.7 (zenith)
Seeing: 7 (out of 10 highest) - good
Moon up: no
Instrument: 50mm Simmons binoculars
Magnification: 7x
Filters used: None
Object: R CrB
Category: Irregular variable (RCrB type)
Constellation: CrB
Data: mag estimate >9.5,  period irregular
RA/DE: 15h49m  +28o09m
Description:
Unexpectedly, this canonic irregular variable was NOT APPARENT
down to a confirmed magnitude of 9.5, in its accustomed position
SSE of mag. 7.5 star HD141352, in the E half of the Crown! Though
R CrB is known for sudden drops in magnitude, the last I know of
was in 1996, and I was not aware that another was occurring now.
Will attempt to confirm in an upcoming telescopic observation.

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