Recent supernovae:
Supernova images made using the 2k ALFOSC CCD camera at
the 2.56-m
Nordic Optical Telescope on La Palma and the UH8K CCD camera at
the University of Hawaii 2.24-m telescope at Mauna Kea Observatory.
This is a 3x1min V-band + 4x1min I-band exposure of
NGC5921 made in
astronomical twilight on the evening of August 20, 2001.
The exposures were taken using ALFOSC at the Nordic Optical Telescope.
North is up, and East to the left; the f.o.v. is about
260"x260". The image shows a supernova in this galaxy, SN2001X.
The image has been
logarithmically scaled. Observation and image processing by Håkon Dahle .
More information about SN2001X.
This is a 4x1min V-band + 4x1min I-band exposure of
NGC5965 made in
astronomical twilight on the evening of August 19, 2001.
The exposures were taken using ALFOSC at the Nordic Optical Telescope.
North is up, and East to the left; the f.o.v. is about
260"x260". The image shows a supernova in this galaxy, SN2001cm
(visible as a blue star just below the dust lane, to the upper left of the galaxy nucleus).
The image has been
logarithmically scaled. Observation and image processing by Håkon Dahle .
More information about SN2001cm.
This is a 3x1min V-band + 3x1min I-band exposure of
NGC662 made in
astronomical twilight on the mornings of August 18, 19 and 21, 2001.
The exposures were taken using ALFOSC at the Nordic Optical Telescope.
North is up, and East to the left; the f.o.v. is about
130"x130". The image shows a supernova in this galaxy, SN2001dn
(visible as a blue star to the upper right of the galaxy nucleus).
The image has been
logarithmically scaled. Observation and image processing by Håkon Dahle .
More information about SN2001dn.
This is a 3x1min V-band + 3x1min I-band exposure of
NGC7780 made in
astronomical twilight on the mornings of August 18, 19 and 21, 2001.
The exposures were taken using ALFOSC at the Nordic Optical Telescope.
North is up, and East to the left; the f.o.v. is about
385"x385". The image shows a supernova in this galaxy, SN2001da
(visible as a blue star to the lower left of the galaxy nucleus).
The image has been
logarithmically scaled. Observation and image processing by Håkon Dahle .
More information about SN2001da.
This is a 3x1min V-band + 3x1min I-band exposure of
UGC1654 made in
astronomical twilight on the mornings of August 18, 19 and 21, 2001.
The exposures were taken using ALFOSC at the Nordic Optical Telescope.
North is up, and East to the left; the f.o.v. is about
190"x190". The image shows a supernova in this galaxy, SN2001ds
(visible as a blue star to the upper right of the galaxy nucleus).
The image has been
logarithmically scaled. Observation and image processing by Håkon Dahle .
More information about SN2001ds.
This is a 3x1min V-band + 3x1min I-band exposure of
UGC913 made in
astronomical twilight on the mornings of August 18, 19 and 21, 2001.
The exposures were taken using ALFOSC at the Nordic Optical Telescope.
North is up, and East to the left; the f.o.v. is about
170"x170". The image shows a supernova in this galaxy, SN2001dk
(visible as a blue star to the right of the galaxy nucleus).
The image has been
logarithmically scaled. Observation and image processing by Håkon Dahle .
More information about SN2001dk.
This is a 3x5min V-band exposure of NGC6951 made in
astronomical twilight on the evening of March 11, 2000.
The exposures were taken using the UH8K camera on the UH 2.24-m telescope.
North is up, and East to the left; the f.o.v. is about
200"x180". The image shows TWO supernovae in this galaxy,
SN1999el and SN2000E, which is a pretty rare event!
The image has been
logarithmically scaled. Observation and image processing by Håkon Dahle .
More information about SN1999el and SN2000E.
This
image of
Markarian 881 with Supernova 1999cb is a composite color image
made from a
200s V-band and a 300s I-band exposure taken on 1999 May 14 UT.
North is up, and east is to the left; the field of view is
296"x309". The blue face-on spiral galaxy is Markarian 881, and SN
1999cb is the blue stellar object 11" west and 10" south of the
galaxy nucleus (to the lower right from the galaxy center).
Odd Trondal made this FIRST EVER supernova discovery from
Norway using his backyard telescope in Oslo. The SN was about a
month past its maximum brightness when the image was taken. Click
on the image to view a closeup of Markarian 881 with the supernova.
The images have been smoothed with a Gaussian filter and
logarithmically scaled. The CCD exposures for this color image were
taken by Ragnvald
Irgens and Henning Holen and the image processing was done by
Håkon Dahle .
Link to Odd Trondal's discovery page for SN 1999cb.
More
information about the discovery (in Norwegian)
This image of NGC3877 is a
composite color image made from 8 V and
I-band exposures of varying exposure times taken on 1998 April
22, 23 and 24 UT. North is up, and East to the left; the f.o.v. is
293"x293". The bright stellar object below the galaxy nucleus is
SN1998S in its early declining phase. The images have been
logarithmically scaled. Observation and image processing by Håkon Dahle .
More information about SN1998S from VSNET.
This image of NGC3982 is a
composite color image made from 9 V and
I-band exposures of varying exposure times taken on 1998 April
22, 23 and 24 UT. North is up, and East to the left; the f.o.v. is
194"x194". Supernova 1998aq was still in its rising phase when the
exposures were taken, and it is visible as a bright blue object to
the upper right of the galaxy nucleus. The images have been
logarithmically scaled. Observation and image processing by Håkon Dahle .
More information about SN1998aq from VSNET.
Links to supernova webpages:
- International
Supernova Network
The Supernova Home Page at CfA
The High-z SN Search
Recent Supernovae Page (also at CfA)
Stockholm
Supernova Page
Supernova and Supernova Remnant Pages on WWW (compiled by M. J.
Montes)
Bjørn H.
Granslo's home page
SN Observations by Nicolas Biver