David's Astronomy Pages (Sky Tours)
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Sep (1) |
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Oct (1) |
Image collection based on the sky tour "Red Stars at night, stellar delight" featured in the Sep 2012 edition of Astronomy Now.
As of the present date (Oct 2012), I have only imaged 2 out of the original 8 star objects listed in the Astronomy Now tour and I have therefore added in a few other red stars that I have imaged.
1. Alpha Herculis - Star (not yet imaged) 2. V Aquilae - Star (not yet imaged) 3. Alpha Vulpeculae - Star (not yet imaged) 4. T Lyrae - Carbon Star (not yet imaged) 5. RS Cygni - Variable Star (not yet imaged) 6. EV Lacertae - UV Type Variable Star 7. Mu Cephei - Star (not yet imaged) 8. S Cephei - Carbon Star (Mira type variable) 9. U Her - Mira type variable 10. Red Star Spectra 11. Y CVn - Variable Star - Carbon Star
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EV Lac (Lacerta) UV + BY |
Annotated CCD Image 3 x 30 sec exposure (average combine), 2x2 binning, C Filter 2008-06-09 00:22 UT (#290078-82) |
EV Lac - Reference Stars |
Annotated CCD Image 60 sec exposure, 2x2 binning, R Filter 2008-06-09 00:20 UT (#290079) |
EV Lac (Lacerta) A 90min time series run was conducted using a V Filter The run successfully caught the rise and decay of a flare (0.1 mag) |
100 x 45s frames, 2x2 binning, V Filter 2008-10-05 01:33 to 03:08 hUT (#310395-494) |
EV Lac flare - detail Flare detected at 01:37hUT (2008-10-05), It took 4 minutes to rise to peak (01:40h) and then took a further 70 minutes to decay away. 0.1 mag brightening at peak. |
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U Her (Hercules) mage showing U Her with comparison and check stars |
Annotated CCD Image 3 x 20s exposure, 2x2 binning, C Filter 2006-07-23 22:36 hUT (#131027-29) |
U Her is a mira variable with catalog period of 406.1 days and magnitude range of +6.4 to +13.4. |
The comparative brightness of
U Her in Infrared band is shown in the following series of images (2006-07-23) |
CCD Images (cropped) ,
5s sec exp, 2x2 binning, 2006-07-23 B: #131030, V: #131045, R: #131039, I: # 13143 |
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A catalogue of star spectra taken using LX200, Star Analyser 100 and SBIG ST-7e :
Star Name (designation) |
Spectra Type (catalog) |
Spectra Lines ( Star Analyser 100) |
Image Date/No. & Notes |
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Visible Light Range |
infrared to right (not coloured) |
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RR CrB | M5 | 2008-04-24 (#284052-56) | |||
R Lyr | M5 | 2008-05-08 (#286189-91) | |||
R Aur | M6-M9 | 2008-04-24 (#284033-35) | |||
R Leo | M6-M9 | 2008-04-24 (#284043-45) | |||
U Her | M6-M9 | 2008-04-17 (#283143-45) | |||
Star Name (designation) |
Spectra Type (catalog) |
Spectra Lines ( Star Analyser 100) Monochromatic & Approx Colour |
Image Date/No. & Notes |
||
R Aur | M6-M9 | 2008-04-24 (#284033-35) | |||
R Aur | significant infrared component |
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CVn Y (Canes Venatici) - Red
variable star Large Carbon Star |
CCD Image 3 x 20s (Median Combine, 2x2 binning, C Filter 2006-05-08 23:54 hUT (#123156-58) [ Insert at 200% size ] |
Colour Images showing CVn Y's red colouration |
Approximate Colour CCD Image Red : 1s exp (R Filter), Green : 1s exp (V Filter), Blue : 2s exp (B Filter) 2x2 binning, 2006-05-08 23:55 hUT (#123159-67) [ Insert at 300% size ] |
R Filter |
B Filter |
CCD Images Top ::::: 20s, 2x2 binning, R Filter, 2006-05-24 23:41h UT (#127052) Bottom : 30s, 2x2 binning, B Filter, 2006-05-24 23:38h UT (#127046) |
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This Web Page: | Sky Tour: Sep (2) - Autumn Red Stars |
Last Updated : | 2015-05-18 |
Site Owner : | David Richards |
Home Page : | David's Astronomy Web Site |