NOVA SCUTI 2003 - V475 Sct
Discovered by Hideo Nishimura
(Kakegawa, Shizuoka-ken, Japan) on T-Max films taken on August 28.58 (mag 8.5)
with a Pentax 200-mm f/4.0 lens (see. IAU Circular 8190 & 8200). Localization of the nova
(2000.0): RA = 18h49m37.59s - DEC = -09°33'50.3"
Journal
of the observations
Date |
Telescope |
Spectrograph |
Spectral resolution |
Total exposure |
2.912 / 09 / 2003 |
4-inch refractor |
MERIS (Vis) |
1000 |
24 minutes |
3.830 / 09 / 2003 |
4-inch refractor |
MERIS (Vis + IR) |
1000 |
32 minutes |
7.852 / 09 / 2003 |
4-inch refractor |
MERIS (Vis) |
1000 |
22 minutes |
13.817 / 09 / 2003 |
4-inch refractor |
MERIS (Vis + IR) |
1000 |
40 minutes |
14.869 / 09 / 2003 |
4-inch refractor |
LHiRES |
10000 |
42 minutes |
15.831 / 09 / 2003 |
4-inch refractor |
LHiRES |
10000 |
106 minutes |
16.847 / 09 / 2003 |
8-inch reflector |
HiRES |
7000 |
62 minutes |
18.821 / 09 / 2003 |
8-inch reflector |
HiRES |
7000 |
98 minutes |
19.822 / 09 / 2003 |
8-inch reflector |
HiRES |
7000 |
60 minutes |
21.829 / 09 / 2003 |
8-inch reflector |
HiRES |
7000 |
52 minutes |
25.845 / 09 / 2003 |
4 -inch refractor |
MERIS (Vis) |
1000 |
30 minutes |
10.793 / 10 / 2003 |
4-inch refractor |
MERIS (Vis) |
1000 |
48 minutes |
Note: All the spectra are corrected for the instrumental spectral response.
Sept. 2.912 UT 2003 Observation (estimated V
magnitude:
8.7)
Observatory: Castanet Tolosan (France)
- IAU959
Observer: Christian Buil
Instrument: Takahashi
FS-128 refractor (5-inch) - MERIS
spectrograph (sampling of 2.87 A/pixel) + Audine KAF-0401E CCD
Cumulative exposure time of 24 minutes (12
x 2 minutes)
Download
020903.DAT ASCII DATA
A 2D representation of Sep. 2 data:
Note:
The presence of numerous P-Cyg profile (Na lines for example) and the presence of prominent
Fe II
series emissions ("Fe II" type nova - see classification of Williams
(1992), AJ, 104, 725). For the date and this resolutio the H-alpha emission peak is 2.94 times the intensity of the
nearby continuum at 6630 A.
Sept. 3.830 UT 2003 Observation (estimated V
magnitude:
8.7)
Observatory: Castanet Tolosan (France)
- IAU959
Observer: Christian Buil
Instrument: Takahashi
FS-128 refractor (5-inch) - MERIS
spectrograph (sampling of 2.87 A/pixel) + Audine KAF-0401E CCD
+ 6200 A order filter for the IR part of the spectrum.
Cumulative exposure time of 32 minutes (16
x 2 minutes)
Download
030903.DAT ASCII DATA
Note:
The
H-alpha emission peak is 6.52 times the intensity of the
nearby continuum at 6630 A for this resolution. Note the increase of P-Cygnii profile for numerous
lines.
Sept. 7.852 UT 2003 Observation (estimated V
magnitude:
9.0)
Observatory: Castanet Tolosan (France)
- IAU959
Observer: Christian Buil
Instrument: Takahashi
FS-128 refractor (5-inch) - MERIS
spectrograph (sampling of 2.87 A/pixel) + Audine KAF-0401E CCD
+ 6200 A order filter for the IR part of the spectrum.
Cumulative exposure time of 22 minutes (11
x 2 minutes)
Download
070903.DAT ASCII DATA
Note:
The
H-alpha emission peak is 8.71 times the intensity of the
nearby continuum at 6630 A. Note the increase of P-Cygnii profile for numerous
lines.
Sept. 13.817 UT 2003 Observation (estimated V
magnitude:
9.0)
Observatory: Castanet Tolosan (France)
- IAU959
Observer: Christian Buil
Instrument: Takahashi
FS-128 refractor (5-inch) - MERIS
spectrograph (sampling of 2.87 A/pixel) + Audine KAF-0401E CCD
+ 6200 A order filter for the IR part of the spectrum.
Cumulative exposure time of 40 minutes (20
x 2 minutes)
Download
130903.DAT ASCII file
Click
here for a close look of this spectrum
Note:
This spectrum cover an extended infrared domain. The
H-alpha emission peak is 7.70 times the intensity of the
nearby continuum at 6630 A for this spectral resolution. The intensity of H-alpha and H-beta lines decrease.
The Ca II triplet is prominent in the infrared (8498.1, 8542.1 and
8662.2 A). The mean continuum is very "flat" after removal of the
instrumental response.
Sept. 14.869 UT 2003 Observation (estimated V
magnitude:
9.0)
Observatory: Castanet Tolosan (France)
- IAU959
Observer: Christian Buil
Instrument: Takahashi
FS-128 refractor (5-inch) - LHiRES
spectrograph (sampling of 0.2294 A/pixel) + Audine KAF-0402ME CCD.
Cumulative exposure time of 42 minutes (21
x 2 minutes)
Download
140903.DAT ASCII file
Note:
Measured FWHM = 1206 km/sec +/- 25 km/sec. FWZI (Full Width at Zero Intensity)
= about 2580 km/sec. Telluric lines removed.
Sept. 15.831 UT 2003 Observation (estimated V
magnitude:
9.2)
Observatory: Castanet Tolosan (France)
- IAU959
Observer: Christian Buil
Instrument: Takahashi
FS-128 refractor (5-inch) - LHiRES
spectrograph (sampling of 0.2294 A/pixel) + Audine KAF-0402ME CCD.
Cumulative exposure time of 106 minutes (53
x 2 minutes)
Download
150903.DAT ASCII file
Note
the fading of H-alpha line. Telluric lines are removed.
Sept. 16.847 UT 2003 Observation (estimated V
magnitude:
9.2)
Observatory: Castanet Tolosan (France)
- IAU959
Observer: Christian Buil
Instrument: Takahashi
CN-212 refractor (8-inch aperture) - HiRES
spectrograph (sampling of 0.3805 A/pixel) + Audine KAF-1602E CCD.
Cumulative exposure time of 62 minutes (31
x 2 minutes)
Download
160903.DAT ASCII file
Sept. 18.821 UT 2003 Observation (estimated V
magnitude:
9.2)
Observatory: Castanet Tolosan (France)
- IAU959
Observer: Christian Buil
Instrument: Takahashi
CN-212 refractor (8-inch aperture) - HiRES
spectrograph (sampling of 0.3805 A/pixel) + Audine KAF-1602E CCD.
Cumulative exposure time of 98 minutes (49
x 2 minutes)
Download
180903.DAT ASCII file
Sept. 19.822 UT 2003 Observation (estimated V
magnitude:
9.2)
Observatory: Castanet Tolosan (France)
- IAU959
Observer: Christian Buil
Instrument: Takahashi
CN-212 refractor (8-inch aperture) - HiRES
spectrograph (sampling of 0.3805 A/pixel) + Audine KAF-1602E CCD.
Cumulative exposure time of 60 minutes (30
x 2 minutes)
Download
190903.DAT ASCII file
Sept. 21.829 UT 2003 Observation (estimated V
magnitude:
9.5)
Observatory: Castanet Tolosan (France)
- IAU959
Observer: Christian Buil
Instrument: Takahashi
CN-212 refractor (8-inch aperture) - HiRES
spectrograph (sampling of 0.3805 A/pixel) + Audine KAF-1602E CCD.
Cumulative exposure time of 52 minutes (26
x 2 minutes)
Download
210903.DAT ASCII file
Sept. 25.845 UT 2003 Observation (estimated V
magnitude:
9.8)
Observatory: Castanet Tolosan (France)
- IAU959
Observer: Christian Buil
Instrument: Takahashi
FS-128 refractor (5-inch) - MERIS
spectrograph (sampling of 2.87 A/pixel) + Audine KAF-0401E CCD
Cumulative exposure time of 30 minutes (15
x 2 minutes)
Download
250903.DAT ASCII file
October 10.793 UT 2003 Observation (estimated V
magnitude:
10.0)
Observatory: Castanet Tolosan (France)
- IAU959
Observer: Christian Buil
Instrument: Takahashi
FS-128 refractor (5-inch) - MERIS
spectrograph (sampling of 2.87 A/pixel) + Audine KAF-0401E CCD
Cumulative exposure time of 48 minutes (24
x 2 minutes)
Download
101003.DAT ASCII file
Click here for
a comparison of the spectra aspect along the time