Return to Home Page
Date: Wed, 21 Apr 93 18:50:08 +1000
From: camiller@latcs1.lat.oz.au (Paul Camilleri)
A REQUEST FOR PHOTOMETRY FOR COMAPRIONS OF NOVA OPH 1993
I have received a GSC chart from Mati Morel (New Castle NSW) for the Nova.
I have below listed the lettered comparison stars and the measured off sets
from the 10"/mm chart. I have also listed all the GSC data of all stars
plotted on the chart. If observers who can do Photometry of the Comparsion
stars please measure the lettered stars and advise me as soon as possible.
These magnitudes will be used by the VSS RASNZ and the AAVSO by their
visual observers for Observations. It is very important that all Major
Variable star sections use the same comparisons this will help to cut out
the errors in reported observations by using different sequences.
The V magnitudes of Stars 1 - 3 are from the Hipparcos Catalogue.
LETTERED STARS:
Off Sets (IN ARC MIN.) +/- 0.1'
82 12.6 E 0.8 N (Star 3 in my email of Yesterday V = 8.185 B-V 0.478)
a 1.3 W 1.0 N
b 15.8 E 8.8 S
c 7.8 W 7.8 S
d 4.1 E 12.0 N (Star 2 in My email of Yesterday V = 9.35 B-V 0.528)
e 1.1 W 14.3 N (Star 1 in my email of Yesterday V = 8.60 B-V 0.60)
f 3.1 W 9.5 S
g 5.0 W 5.0 S
h 6.0 E 3.1 S
k 13.0 W 4.6 N
GSC Data.
GSC No.
6825+ RA (J2000) Dec (J2000) ERR MAGN ERR Letter on MM's Chart
00469 17 23 57.49 -23 15 17.1 0.3 11.94 0.54
00558 17 23 58.03 -23 18 31.8 0.3 11.93 0.54
00106 17 24 03.24 -23 10 20.4 0.5 12.74 0.61
00305 17 24 04.93 -23 08 33.0 0.5 12.67 0.61
00305 17 24 05.02 -23 08 34.7 0.3 12.82 0.54
00348 17 24 06.77 -23 12 35.8 0.3 13.01 0.54
00329 17 24 09.31 -23 06 33.2 0.5 13.37 0.62 Star K
00329 17 24 09.37 -23 06 35.1 1.2 13.42 0.55 Star K
00497 17 24 27.64 -23 19 07.5 0.3 12.08 0.55
00460 17 24 29.70 -23 25 34.4 0.3 11.87 0.54
00411 17 24 32.47 -23 19 11.6 0.3 11.11 0.55 Star C
00115 17 24 39.02 -22 55 53.5 0.4 12.55 0.60
00493 17 24 42.14 -23 03 11.2 0.3 12.99 0.57
00561 17 24 42.35 -23 19 39.8 0.3 12.97 0.55
00343 17 24 44.01 -23 16 12.8 0.3 12.58 0.56 Star G
00349 17 24 45.81 -23 21 57.4 0.3 12.85 0.55
00476 17 24 47.86 -23 24 39.9 0.3 11.91 0.55
00397 17 24 49.43 -23 26 33.9 0.3 11.19 0.55
00551 17 24 52.24 -23 20 43.0 0.3 11.98 0.56 Star F
00123 17 24 52.88 -23 10 50.7 1.3 10.54 0.59 ********************
00567 17 24 55.91 -23 22 25.1 0.3 12.45 0.56
00198 17 25 00.13 -23 10 18.7 0.5 10.86 0.59 Star A
00198 17 25 00.21 -23 10 21.2 0.3 11.02 0.57 Star A
00036 17 25 01.71 -22 56 57.7 0.4 11.81 0.59 Star E
00036 17 25 01.75 -22 56 58.8 0.3 11.98 0.57 Star E
00517 17 25 06.79 -23 19 55.1 0.3 12.49 0.56
00564 17 25 12.79 -23 20 38.0 0.3 12.01 0.57
00039 17 25 25.19 -22 59 02.9 0.4 11.33 0.59 Star D
00039 17 25 25.24 -22 59 04.0 0.3 11.56 0.58 Star D
00039 17 25 25.26 -22 59 03.3 0.6 11.68 0.59 Star D
00409 17 25 32.76 -23 14 24.3 0.3 12.98 0.57 Star H
00368 17 25 52.04 -23 22 07.7 0.3 12.72 0.57
00368 17 25 52.06 -23 22 07.0 0.5 12.48 0.59
00105 17 25 55.32 -22 59 16.2 0.4 12.86 0.61
00597 17 25 56.16 -23 21 16.5 0.5 12.47 0.59
00320 17 26 01.29 -23 10 15.6 0.5 8.22 0.62 Star "3" V = 8.185 HIC
00320 17 26 01.36 -23 10 16.4 0.3 8.61 0.58 Star "3" V = 8.185 HIC
00320 17 26 01.38 -23 10 15.6 1.8 8.15 0.59 Star "3" V = 8.185 HIC
00495 17 26 09.43 -23 19 44.7 0.5 12.59 0.59
00495 17 26 09.43 -23 19 45.5 0.3 12.60 0.58
00292 17 26 14.79 -22 58 52.5 0.4 12.31 0.60
00292 17 26 14.83 -22 58 53.5 0.3 12.54 0.59
00292 17 26 14.85 -22 58 52.8 0.5 12.53 0.59
00546 17 26 15.14 -23 19 55.8 0.3 11.15 0.58 Star B
00546 17 26 15.15 -23 19 55.1 0.5 11.03 0.59 Star B
00599 17 26 15.45 -23 21 23.1 0.5 12.57 0.59
00322 17 26 15.59 -23 03 10.8 0.4 12.45 0.60
00322 17 26 15.65 -23 03 11.9 0.3 12.63 0.59
00524 17 26 19.80 -23 13 46.2 0.3 11.21 0.59
00524 17 26 19.81 -23 13 45.8 0.5 11.27 0.59
"******************" this star was not visible to magnitude 12v on April
18th, Mati said there is no known variable star in that position, and I can
not recall finding a variable object in this position during my searchers
over the past two years. The star must be some kind of Flaw??.
Serval of the lettered star are listed twice or three times in the GSC as
listed above.
I look forward to receive Photometry of these lettered stars.
Cheers,
Paul J. Camilleri
camiller@latcs1.lat.oz.au
Return to the Powerful Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp
