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23 May 2025
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The past week the Clear Skies website was updated with:
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Deep Sky Forum's Objects of the Week
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Clear Skies Blog update
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Observations
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87 galaxies & galaxy groups
1 quasar
15 double stars
Total: 103 observations
First time observations: 63 objects
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1 More spring 2025 astrotrip blog is coming, soon.
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New CSOG edition + updated edition
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As was already case for the Struve double stars, data from the Washington Double Star Catalog was used for the new Burnham's edition. For both editions Index files, AstroPlanner planfiles and Tour files are included. For the updated Struve edition the styling was tweaked a bit and errors and inconsistencies were corrected where found.
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The format for these editions is very similar to the previous Struve edition, yet something completely new.
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All CSOG guides for deepsky object and carbon stars contain images, in 4 image orientation options. The current guides for CSOG's Struve's Double Star edition do not contain images. However, when using these guides at the eyepiece, an image can often come in handy. For example, when a close double in a busy star field is to be split and it's difficult to determine which star in the field of view is (the primary star of) the double, before applying magnification. Or when you want to determine if something faint and fuzzy nearby is perhaps a galaxy or nebula, or whether that concentration of stars nearby is a cluster, etc.
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To fix this hiatus, hyperlinks are added to the guides. Clicking the double star's ...
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- WDS designator in the first column will open the page for that double star on the website Stelledoppie.it;
- Designation in the second column will open a 75' POSS2 Blue DSS image;
- Components in the third column will open a 75' POSS2 Red DSS image;
- PA / Sep. (postion angle & separation) in the fifth column will open the double star in SIMBAD;
- R.A. / Dec. (the coordinate in epoch J2000.0) in the final column will open Aladin Lite, centered on the object in a 30' (1/2°) DSS POSS2 Blue field.
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The sample page below is the first page for the double stars in Burnham's Celestial Handbook for the constellation of Andromeda.
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On the download page, there is a sample download to tryout this new format.
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Coming soon...
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Future updates to the Clear Skies website will include:
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