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META TOPICPARENT |
name="LogBookAstronomyEntryAUTOINC0001" |
Nebulas |
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- Start up around 19:00
- Dome open straight away to cool down and cooler can reach -20C
- Aligned easily to Sirius to the south.
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Observation |
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- Flaming Star Nebula the target as quite high and slightly to the west (ie away from London).
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- RA 5h14m40s; Dec +34o28'25"
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- 1 min exposure without filter to get some stars despite blueish sky.
- Uploaded to astrometry.net to check location vs stellarium location.
- http://nova.astrometry.net/user_images/1564397#annotated
- Slightly off it would seem. Took 400s second exposure in mean time with H Alpha filter to see if we see anything.
- Indeed, slightly off.
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- Ah, forgot to turn on tracking!
- Centred where nebula should be (without filter - so just stars) and started tracking.
- Checking with astrometry again before long data taking.
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- Bang on target - 20:58
- 20 minute image was good, but we need better - limited by read out noise
- 2x 30 minute exposures so far at 22:37
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- LIght without filter for star field.
- 60s had some stars, but 180s was better. Need to take several for star field.
- Quick to take now and will use as trial of false colouring later. Record 5x 180s in total.
- Then back to 30min h alpha exposures.
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- Midnight and on 5th 30 minute exposure
- Finished Flaming Star Nebula around 00:30 as it was getting very low and cloud is rolling in from the west.
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- Took a few of jupiter - wide field and main scope - using h alpha and blue filter respectively as pretty bright.
- Moved up a wee bit to Markarian's chain - let's see if we can get some galaxies!
- This site is really suited for a deep sky galaxy zoo image - however, this means there are no bright stars to guide on
- I think I may be guiding on a galaxy, but it's something.
- Tried 180,300,600 but settled on 500s as a few things saturating.
- guiding ok despite dim image.
- http://nova.astrometry.net/user_images/1564894#annotated
- Astrometry lists around 22 galaxies in this image!
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-- LaurieNevay - 31 Mar 2017 |
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META FILEATTACHMENT |
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META FILEATTACHMENT |
attachment="flaming_1800s-002.jpg" attr="" comment="" date="1491001386" name="flaming_1800s-002.jpg" path="flaming_1800s-002.jpg" size="8855015" user="uxap005" version="1" |
META FILEATTACHMENT |
attachment="astrometry_markarians_chain.jpg" attr="" comment="" date="1491006828" name="astrometry_markarians_chain.jpg" path="astrometry_markarians_chain.jpg" size="1143823" user="uxap005" version="1" |
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