Lew's Suspected Variable

Feb. 21, 1999. The suspected variable is not bright (as first thought), but appears to be variable nonetheless Near the field of AQ Eridani, a dwarf nova, one of the charted stars seemed brighter through the CCD camera than on the chart and other information available. A green filter (of unknown properties in the IR) was used. The GSC information on the star: GSC 4758:506 (Stellar) Magnitude:15.2 RA:05h 05m 37.2s Dec:-03d 59' 11" Epoch 2000. South is up in the discovery image. The suspected variable is 12.5 arc min NW of AQ ERI and is shown on the current AAVSO (d) & (e) charts.

Differential photometry using the bright star at the top of the frame indicates the possible variable is at magnitude 9.25 on the instrumental pseudo V system, taking the V value for the reference star (GSC 4758:82) to be V=9.84.
Arne Henden then of the US Naval Observatory in Flagstaff reported his data and Lew inserts his measurements ( shown in italics), the photometry by Brian Skiff and other observers' visual observations (color)

Identification	HJD	V	B-V	Observer
Tycho star (4758-82): Used as a comparison star	51195.6767	9.689	0.711	Arne Henden
	51202.7094	9.730	0.702	Arne Henden
	51220.7056	9.694	0.698	Arne Henden
Lowell Observatory P.E. V	51222.7	9.730	0.68	Brian Skiff
Observations of Lew's Star (4758-506)
Visual obs.	51192.319	13.7	Transformed from vis. obs. 14.2 V = v - 0.2(B-V)	Jan Hers
Lew's star (4758-506):	51195.6767	13.547	2.344	Arne Henden
	51202.7094	13.532	2.361	Arne Henden
Lew's measured V (not flat field)	51211.6583	13.45	not seen in blue light	Lew
	51220.7085	13.340	2.327	Arne Henden
Lew's star Visual obs.	51223.5507	13.5	Transformed from vis. obs. 14.0 V = v - 0.2(B-V)	Miroslav Komorous
CCDV	51229.652	13.20		Lew
CCDV	51515.74	13.59		Lew
CCDV	51537.75	13.65		Lew

Blue	Visual	Red	Infra Red
Not visible! (and a bit underexposed)	Faint, but there V=13.46	Bright	Very bright in IR
Here's a cheesy false color image of it using VR&I as BG&R.
Here's the DSS image of it.
The DSS credit image is thanks to NASA!	Based on photographic data obtained using The UK Schmidt Telescope. The UK Schmidt Telescope was operated by the Royal Observatory Edinburgh, with funding from the UK Science and Engineering Research Council, until 1988 June, and thereafter by the Anglo-Australian Observatory. Original plate material is copyright (C) the Royal Observatory Edinburgh and the Anglo-Australian Observatory. The plates were processed into the present compressed digital form with their permission. The Digitized Sky Survey was produced at the Space Telescope Science Institute under US Government grant NAG W-2166.

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