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[vsnet-chat 1266] sn1998dn.fts

Dear VSNET members,

Hello. I am Seiichi Yoshida working on the MISAO Project. Now I
introduce you the examination result of sn1998dn.fts, which was
introduced us in [vsnet 1561].

These data are automatically measured by the PIXY system, an automatic 
image examination software, of the MISAO Project. Reference catalog is
USNO-A1.0 (V) [V=R+0.375(B-R)]. False data removal image examination
verification have been done by hand after all. For more information
about the project and the system, please see the URL:

http://vsnet.info.waseda.ac.jp/muraoka/members/seiichi/misao/

The output view of the PIXY system is available at:

http://vsnet.info.waseda.ac.jp/muraoka/members/seiichi/misao/tmp/vsnet/sn1998dn.gif

Because NGC 337 is very complex, the system separated it into 11
pieces. As you know, this image is of NGC 337, not of NGC 337A (the
host galaxy of SN 1998dn). So there is no supernova in this image
anyway. But even if a new supernova existed in this galaxy, the PIXY
system could never detect and alarm it. BTW, the USNO-A1.0 also
contains two data entries for this galaxy.

Many noises appear at the edge of bottom and right. They are all
deteled by hand.

Some detected stars are not recorded in the catalog, but many of them
may be a white noise.

USNO0750.00241553 is apparently moving by proper motion.

Image Information ****************************************************

Image size:	382 x 253
Center:		00 59 50.15  -07 34 27.8
Field of view:	20.85 x 13.81 arcmin
Pixel size:	3.27" / pixel
P.A.:		1.11 deg
Limiting mag:	19.0 mag
Faintest mag:	20.0 mag
Position error:	1.14" 0.92"
Mag error:	0.69 mag

The following stars are not recorded in the catalog. *****************

00 59 38.59 -07 40 25.7  mag=15.9  x= 241.37  y= 236.96

01 00 31.21 -07 28 36.8  mag=17.6  x=   5.83  y=  16.63

00 59 53.91 -07 33 34.2  mag=17.7  x= 174.24  y= 109.79

01 00 31.97 -07 28 40.3  mag=17.8  x=   2.37  y=  17.64

The following stars may be moving by proper motion. ******************

00 59 49.96 -07 34 40.9  mag=13.1  x= 191.78  y= 130.51
00 59 51.10 -07 35 00.1  mag=14.5  x= 186.46  y= 136.28
00 59 49.81 -07 35 14.0  mag=16.0  x= 192.23  y= 140.65
00 59 52.62 -07 34 58.5  mag=16.5  x= 179.57  y= 135.64
00 59 47.41 -07 34 20.9  mag=16.6  x= 203.47  y= 124.65
00 59 48.52 -07 34 07.8  mag=16.8  x= 198.53  y= 120.55
00 59 52.19 -07 34 48.2  mag=17.1  x= 181.57  y= 132.55
00 59 51.85 -07 34 31.7  mag=17.2  x= 183.26  y= 127.54
00 59 52.48 -07 34 37.4  mag=17.5  x= 180.34  y= 129.22
00 59 48.12 -07 34 27.2  mag=17.6  x= 200.22  y= 126.52
00 59 52.84 -07 35 14.4  mag=19.1  x= 178.50  y= 140.50
USNO0750.00239942   00 59 50.27  -07 34 42.0   6.8 R  
USNO0750.00240144   00 59 52.93  -07 35 14.6  16.5 R  14.3 B  (15.68V)
NGC 337  (galaxy)  R.A.=00h59.8m  Decl.=-07o35'  size=2.8'  mag=11.6
MCG-01-03-053  NGC  337  R.A.=00 59.77  Decl.=-07 36  11 mag

01 00 30.85 -07 39 44.8  mag=12.6  x=   5.20  y= 219.61 *
USNO0750.00242688   01 00 30.43  -07 39 43.9  11.4 R  13.0 B  (12.00V)

01 00 14.04 -07 31 03.8  mag=15.0  x=  83.51  y=  62.29
USNO0750.00241553   01 00 13.79  -07 30 51.1  15.2 R  18.1 B  (16.29V)

00 59 52.98 -07 37 04.3  mag=17.4  x= 177.21  y= 174.07
USNO0750.00240146   00 59 53.00  -07 37 00.5  16.9 R  18.2 B  (17.39V)

Photometric data *****************************************************

J005938.59-074025.7	15.9
J005953.91-073334.2	17.7
J010031.21-072836.8	17.6
J010031.97-072840.3	17.8
USNO0750.00237026	17.9:
USNO0750.00237173	16.4
USNO0750.00237246	18.3
USNO0750.00237461	18.0
USNO0750.00237639	17.5
USNO0750.00237642	16.3
USNO0750.00237766	18.2	= USNO0750.00237776
USNO0750.00237768	19.4
USNO0750.00237941	15.5
USNO0750.00238109	15.0
USNO0750.00238125	17.9
USNO0750.00238127	14.9
USNO0750.00238213	16.9
USNO0750.00238225	18.6
USNO0750.00238491	18.0
USNO0750.00238513	17.6
USNO0750.00238579	17.2
USNO0750.00238652	16.2
USNO0750.00238701	17.4
USNO0750.00238718	16.6
USNO0750.00238728	18.8
USNO0750.00239007	18.0
USNO0750.00239194	19.1
USNO0750.00239452	18.6
USNO0750.00239529	19.1
USNO0750.00239630	18.5
USNO0750.00239766	15.7
USNO0750.00239870	19.1
USNO0750.00239949	16.1
USNO0750.00240002	14.7
USNO0750.00240122	14.7:
USNO0750.00240146	17.4
USNO0750.00240220	16.7
USNO0750.00240458	20.0
USNO0750.00241029	18.0
USNO0750.00241062	18.6
USNO0750.00241068	13.7
USNO0750.00241122	19.0
USNO0750.00241157	18.4
USNO0750.00241233	17.3
USNO0750.00241248	16.6
USNO0750.00241383	17.9
USNO0750.00241393	12.6
USNO0750.00241540	18.2
USNO0750.00241553	15.0
USNO0750.00241631	18.6
USNO0750.00241644	17.7
USNO0750.00241720	18.7
USNO0750.00241774	15.6
USNO0750.00241893	16.7
USNO0750.00241898	17.0
USNO0750.00241915	17.9
USNO0750.00241927	19.2
USNO0750.00242026	19.3
USNO0750.00242088	12.6	= USNO0750.00242076
USNO0750.00242273	16.3
USNO0750.00242372	16.2
USNO0750.00242432	19.7
USNO0750.00242670	14.5
USNO0750.00242688	12.6:
USNO0750.00242707	17.2:
USNO0825.00228009	17.5
USNO0825.00228196	19.1
USNO0825.00229146	18.8
USNO0825.00229596	18.4
USNO0825.00229656	13.8
USNO0825.00229839	16.0
USNO0825.00229940	19.5
USNO0825.00229974	15.8
USNO0825.00230501	13.1
USNO0825.00230621	13.5
USNO0825.00230804	17.8
USNO0825.00231530	19.4
USNO0825.00231723	19.3
USNO0825.00233184	17.9

--
Seiichi Yoshida
Muraoka Lab., Waseda University, Japan
seiichi@muraoka.info.waseda.ac.jp
http://vsnet.info.waseda.ac.jp/muraoka/members/seiichi/index.html

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