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Sky Tour : Lyra - June

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Image collection based on the sky tour "Looping the Loop in Lyra" featured in the June 2013  edition of Astronomy Now. 

Bullet  1. Vega - A0 Star
Bullet  2. Epsilon Lyrae - Double Star (Double-Double)
Bullet  3. Beta Lyrae
Bullet  4. M57 - Planetary Nebula (Ring Nebula)
Bullet  5. Struve 525 - Multiple Star
Bullet  6. NGC 6765 - Planetary Nebula
Bullet  7. M56 - Globular Cluster
Bullet  8. NGC 6791 - Open Cluster

1.  Vega - A0 Star 

Vega (Alpha Lyr)
Image
Image
Image
CCD Spectral Profile
3 x 0.5s, 1x1 binning, Star Analyser 100
2008-05-07 23:01hUT
(#286046-48)
Spectral Absorption Lines in Vega (Lyra)
O2 and H2O lines are due to absorption in the Earth's atmosphere)
H-epsilon and H-zeta lines are not visible due to decreasing 
sensitivity of CCD chip in violet region and overall low resolution.
Image
Image
CCD Spectral Profile (200%)
3 x 0.5s, 1x1 binning,  Original Dispersion 33.6 A/px
2008-05-07 23:01hUT (#286046-48)
  
Vega (Lyra)
Star (mag +0.03) shows significant glare
Image
CCD  Image 
20s exposure, C filter
2005-10-02  20:40h UT (#96002)

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2. Epsilon Lyrae - Double Star (Double-Double)

Epsilon Lyrae (Lyra) 

Image
CCD Image (linear scale, 50% size)
5s exposure (single frame), 3x3 binning, C Filter
2010-08-20 22:18 hUT (#423085)
12" LX200R  (at f/9.7) + ST-10XME

 

 Epsilon Lyrae - detail
(image showing that each component of the double is itself a double).

Image
Annotated CCD Image (cropped)
0.12s exposure (single frame), 2x2 binning, C Filter
2010-08-20 22:22 hUT (#423093)
12" LX200R  (at f/9.7) + ST-10XME

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3.  Beta Lyrae - Variable Star

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4.  M57 - Planetary Nebula

M57 (Lyra) 
Image
CCD Image , 
3 x 60 sec exposure (average combine), clear filter
2005-06-06  23:49 h UT (#88039-41)
 
Image 
CCD Colour Composite
Luminance (C med 3x30s), Blue 220% (B av 3 x 60s), Green (V av 2x60s), Red (R av2x60s)
2004-09-18 23:16 hUT (# 72004-16)
8" LX200 classic + ST-7e

  

Image
Colour CCD Image (LRGB)
Cropped to Central Area, Sharpened (Unsharp Mask)
Luminance : 22 x 30 sec exposure (average combine), 1x1 binning, C Filter
Red: 4 x 30s, Green : 5 x 30s, Blue: 4 x 45s (average combine), 1x1 binning 
2009-07-30 22:07 h UT  (#379295-348) + (colour #379323-41)
12" LX200R  (at f/5.7) + ST-10XME
(RGB frame enlargement factor x1.0096 wrt to C Frame)

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5.  Struve 525 - Multiple Star

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6.  NGC 6765 - Planetary Nebula

NGC 6765  (Lyra)

Image
CCD Image (Linear Brightness Scale, cropped)
45s exposure (single frame), 3x3 binning, C Filter 
2010-08-30 21:59hUT (#426069)
12" LX200R  (at f/9.7) + ST-10XME
   

NGC 6765 - detail

Image
CCD Image (Linear Brightness Scale, SubFrame)
60s exposure (single frame), 2x2 binning, C Filter 
2010-08-30 22:06hUT (#426075)
12" LX200R  (at f/9.7) + ST-10XME

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7.  M56 - Globular Cluster

M56 (Lyra)

Image

CCD Image (35% size reduction, linear scale)
5 x 15s sec exposure (average combine), 2x2 binning, C Filter
2009-06-26 00:16 h UT (#373104-08)
12" LX200R  (at f/5.7) + ST-10XME

 

M56 - detail

Image

CCD Image (100% size, square root scale, cropped)
Image details as above

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8.  NGC 6791 - Open Cluster

NGC 6791 (Lyra)

Image
CCD Image (Linear Scale, 75% size)
3 x 30s exposure (average combine), 3x3 binning, C Filter 
2010-08-26 21:51hUT (#426057-60)
12" LX200R  (at f/9.7) + ST-10XME

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This Web Page: Sky Tours - Autumn Planetaries - October
Last Updated : 2015-05-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site