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| Object: |
Arp 1 and 285 (spiral and interacting galaxies |
| Date, time: |
2011-11-02, 2011-12-27 and 2011-12-30(luminence) and 2012-01-20 (color). |
| Location: |
Sandvreten Observatory. |
| Instrument: |
T41 telescope (OGS RC-16), D=41 cm, F/9, with autoguider |
| Detector: |
SBIG ST-8300M (binned 2x2 and 3x3, L:310 min R:60min G:60min B:80min |
| Limit. mag.: |
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| Circumstances: |
Clear. |
| Comments: |
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| Observer: |
Mats Johansson, Patrik Holmström, Lars Hermansson |
|
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| Object: |
NGC891 |
| Date, time: |
2011-09-29 (color), 2011-10-28 (luminence) and 2011-12-02 (more color). |
| Location: |
Sandvreten Observatory. |
| Instrument: |
T41 telescope (OGS RC-16), D=41 cm, F/9, with autoguider |
| Detector: |
SBIG ST-8300M (bin 2x2, 0.595"/pixel), L:110min R:10min G:10min B:10min |
| Limit. mag.: |
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| Circumstances: |
Clear, seeing 2.4-2.8" FWHM for Lum data (2011-10-28/2011-12-02) and 3.2" for RGB (2011-10-29). |
| Comments: |
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| Observer: |
Mats Johansson, Patrik Holmström, Lars Hermansson |
|
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| Object: |
The Mice Galaxies (ARP 242/NGC 4676A+B) |
| Date, time: |
2011-03-30, 22:00CET |
| Location: |
Sandvreten Observatory. |
| Instrument: |
T41 telescope (OGS RC-16), D=41 cm, F/9, with autoguider |
| Detector: |
SBIG ST-7E (-25C), CFW-8, 7x20 min Clear-filter |
| Limit. mag.: |
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| Circumstances: |
Clear, seeing less than 2.2" |
| Comments: |
Calibrated with darks and stacked in MaximDL, deconvolution, retouch in Photoshop.
The field of view is very small, 6.3x4.2 arc minutes, with a limiting magnitude of 22+. |
| Observer: |
Mats Johansson, Patrik Holmström, Lars Hermansson |
|
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| Object: |
The Whirlpool Galaxy (M51) |
| Date, time: |
2011-03-25, 22:00CET |
| Location: |
Sandvreten Observatory. |
| Instrument: |
T41 telescope (OGS RC-16), D=41 cm, F/9, with autoguider |
| Detector: |
Canon 300D (modified), 8x600s. |
| Limit. mag.: |
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| Circumstances: |
Clear, seeing less than 2.5" |
| Comments: |
Calibrated with darks and stacked in MaximDL, retouch in Photoshop |
| Observer: |
Mats Johansson, Patrik Holmström, Lars Hermansson |
|
 |
| Object: |
The Cigar Galaxy (M82) |
| Date, time: |
20110204, 18:58UT |
| Location: |
Sandvreten Observatory. |
| Instrument: |
T41 telescope (OGS RC-16), D=41 cm, F/9, with autoguider |
| Detector: |
Canon 300D (modified), 20x300s. |
| Limit. mag.: |
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| Circumstances: |
Clear, aurora, seeing 2.4" |
| Comments: |
Calibrated with darks and stacked in MaximDL, retouch in Photoshop CS3 |
| Observer: |
Mats Johansson, Patrik Holmström, Lars Hermansson |
|
 |
| Object: |
The Triangelum Galaxy (M33) |
| Date, time: |
2010-11-06 |
| Location: |
Ekebyboda, Uppland, Sweden. |
| Instrument: |
Celestron C8-SGT with autoguider |
| Detector: |
Piggyback mounted Canon 5D Mk2 with 420mm/f4.5 |
| Limit. mag.: |
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| Circumstances: |
A bit windy, -2C, -2C |
| Comments: |
18 x 180s @ ISO1600 (Processed in DeepSkyStacker) |
| Observer: |
Arne Hogmark |
|
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| Object: |
The Andromeda Galaxy (M31) |
| Date, time: |
2010-10-02 |
| Location: |
Dalby, Uppland, Sweden. |
| Instrument: |
Celestron C8-SGT with autoguider |
| Detector: |
Piggyback mounted Canon 5D Mk2 with 300mm/f2.8 |
| Limit. mag.: |
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| Circumstances: |
Very humid air, 2C |
| Comments: |
13 x 120s @ ISO800 (Processed in DeepSkyStacker) |
| Observer: |
Arne Hogmark |
|
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| Object: |
Supernova SN2010hr in PGC 18452 |
| Date, time: |
2010-09-13 |
| Location: |
Sandvretens observatorium 30 km W Uppsala, Sweden |
| Instrument: |
Newton 0.444 m, f/4,4 |
| Detector: |
SBIG ST-7E (-35C), CFW-8, Schuler CBVR |
| Limit. mag.: |
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| Circumstances: |
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| Comments: |
Followup on off a supernova discovered by UAA member Gregor Duszanowicz. |
| Observer: |
Lars Hermansson, Mats Johansson, Christoffer Svenske |
|
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| Object: |
NGC 6946 and SN2008S, Type IIn |
| Date, time: |
2008-03-04, 20:45-22.24 (UT) |
| Location: |
Sandvretens observatorium 30 km W Uppsala, Sweden |
| Instrument: |
Newton 0.444 m, f/4,4 |
| Detector: |
SBIG ST-7E (-35C), CFW-8, Schuler CBVR
Exposure: Clear 4x5min (bin1); B 3x5min (bin1); V 2x5min (bin1); R 5min (bin1) |
| Limit. mag.: |
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| Circumstances: |
Clear, rural sky, seeing 2.5" |
| Comments: |
Calibration in MaximDL and final retouch in Photoshop.
NGC 6946 is also known as "Fireworks Galaxy". Nine supernovae have been observed in this galaxy in the last 100 years. SN 1917A, 1939C, 1948B, 1968D, 1969P, 1980K, 2002hh, 2004et and 2008S. |
| Observer: |
Lars Hermansson |
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Patrik Holmström tillsammans med nedanstående ifyllda mall. Namnet på bilden bildar du enligt: