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(IAAC) Obj: R Lyr (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 Lyr (variable) - Inst: 7x50 binoculars
From: Lew Gramer <dedalus@alum.mit.edu>
Date: Wed, 30 Jul 97 14:07:52 -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, 04:00 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 Lyr
Category: Short-amplitude semi-regular variable
Constellation: Lyr
Data: mag estimate 3.9,  period 46 days?
RA/DE: 18h55m  +43o57m
Description:
R Lyrae appeared fairly near maximum tonight, brighter by about
0.5 mag than nearby zeta-1 or eta Lyr (both mag 4.4), but fainter
by slightly more than 0.5 mag than gamma Lyr (mag 3.2) further off.
(Estimate: 4 steps BTr than eta Lyr, 5 steps FTr than gamma Lyr.)

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