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			THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS 
				25 Birch Street, Cambridge, MA 02138 USA
				BITNET: aavso@cfa	SPAN: cfa::aavso 
				INTERNET: aavso@cfa.harvard.edn
				Tel. 617-354-0484	FAX 617-354-0665

			AAVSO ALERT NOTICE 201 (February 23,1995)

0740+73 SUPERNOVA 1995E IN NGC 2441

We have been informed by the Central Bureau for Astronomical Telegrams (IAU Circular 
6137) and by Guy Hurst, editor of The Astronomer, of the discovery of a supernova in 
NGC 2441 by Alessandro Gabrielcic, Agordo, Italy, on February 20.850 UT on a CCD 
frame at V magnitude about 15.0. SN 1995E is located 7 seconds east and 22 seconds south 
of the galaxy's center. P. Molaro (who reported the discovery to the IAU Circular), C. 
Boehm, and G. Tessicini, Trieste Observatory, report that the spectrogram they have 
obtained suggests that SN 1995E to be a type-Ia supernova.

The position of NGC 2441 is:

			RA = 07h 52.2m	Decl. = +73° 02' (2000)

Accompanying are a finder chart from the AAVSO Variable Star Atlas showing the location 
of the galaxy and a CCD image from the Deg Space CCD Atlas: North by J.C. Vickers. 
Until we have made a finder chart for this field we recommend that, if the supernova 
continues to brighten, observers make use of the comparison star sequence in the field of Z 
Cam, which is near by.

Sincere congratulations to Allessandro Gabrielcic on his discovery!

IMPORTANT REMINDER and THANKS

a. Observations of cataclysmic variables for Astro-2, EUVE, VOYAGER, and ASCA 
satellites:

The NASA satellite Astro-2 is scheduled to be launched from the space shuttle on March 2 
at 6:37 UT 1995. One of the observing programs to be carried out with Astro-2 is the 
monitoring of cataclysmic variables with various instruments aboard Astro-2, and for this 
program the team of astronomers is depending on the observations reported by variable 
star observers worldwide that we will communicate to them every day (see AAVSO Alert 
Notice 197). Please monitor the cataclysmic variables below closely and inform us of your 
observations daily from March 2 through March 16 so that we may inform the team of 
astronomers of Astro-2 daily.

0058+40	RX And	0409-71	VW Hyi	1247-28	EX Hya
0139+37	AR And	0749+22	U Gem	1813+49	AM Her
0207-63	WX Hyi	0804+28	YZ Cnc	1934+30	EM Cyg
0219+27	RW Tri	0814+73	Z Cam	2138+43	SS Cyg
0309-22	EF Eri		
			
The highest priority targets continue to be VW Hyi, WX Hyi, YZ Cnc, and also U Gem 
and Z Cam. However, the other targets are also important, particularly if any of them go 
into outburst. Additional targets of opportunity, if any of them go into outburst, are SW 
UMa, OY Car, BV Cen, and HL CMa.

Checking the recent data that you, our observers, have been submitting, we predict that 
several of the stars on the list will go into outburst during the Astro-2 mission, and your 
early information and alerts on these outbursts are particularly crucial to the success of the 
Astro-2 observing runs. So, please monitor these stars every night if you can and report 
your observations EVEN IF THE STARS ARE AT MINIMUM, daily to AAVSO 
Headquarters by 9:30 a.m.(EST) - 2:30 (GMT) - so that we may inform the team of 
astronomers daily.

b. Thank you!

Sincere thanks to all observers who monitored the nine dwarf novae that were in the 
observing program of astronomers at Keele University early this month (AAVSO Alert 
Notice 199) We particularly thank W. Albrecht, J. Bortle, T. Burrows, A. Dill, W. Dillon, 
P. Dombrowski, G. Dyck, R. Harvan, R. Hayes, R. King, J. McKenna, D. Overbeek, P. 
Robbins, R. Royer, C. Stephan, W. Stewart, B. A. Tekatch, and D. York. Your valuable 
astronomical contributions are very much appreciated by all of us here and by the 
astronomers who carried out interesting observations on these stars.

Thanks also to all observers who have monitored Hipparcos Red Variables throughout 
February for photometric calibration (AAVSO Alert Notice 196). Your observations, ag 
are very much appreciated and have been very helpful.

Observers are welcome to use our charge-free number (800-642-3883) to report 
observations. The answering machine is on nights and weekends for your convenience. 
For observers who cannot use this number, please send a list of your phone calls so we may 
reimburse your telephone charges. We also encourage observers to send observations by 
fax at 617-354-0665 or by e-mail through the Internet at aavsoQa cfa.harvard.edu.

Many thanks for your efforts and valuable astronomical contributions.

Good observing!

Janet A. Mattei 
Director