Clusters
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all images copyright by M. Burri

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 Clusters

 
NGC 2264 Open Cluster and Nebula

740KSC3 - LX90 with FR3.3 - 7.Jan.2005 
NGC 6883 / 6871 / OCL 150 -  Open clusters in Cygnus

740KSC1.5 - CANON 85mm f/1.8 - 1.Oct.2003

80 images total 10,20,30 and 40 sec stacked with MIRA AP and Photoshop.

ngc 6883: vis. 8 - ~30 stars- 15 mio years old  - distance 4'500 ly - size 35'
ngc 6871: vis. 5.2 - ~15 stars - 10 mio years old - distance 5'400 ly - size 30'
Biur 2(OCL150): vis 6.3 - ~10 stars - 1 mio years old - distance ? ly - size 13' 

Annotated image
NGC 884 & 869 - Famous double cluster in Perseus

740KSC1.5 - CANON 85mm at f/1.8 - 12.Sep.2003

34x15 sec stacked with MIRA AP and Photoshop.

ngc 884: vis. 6.1 - 150 stars - 3.16 mio years old - distance 7500 ly - size 18' (left)
ngc 896: vis. ~6 - 200 stars - 6.63 mio years old - distance 7200 ly - size 18' (right)
M3 NGC5272 - Cluster in Canes Venatici

740KSC3 bw - LX90 0.47FR (mogg) ~fl 980mm - 16.April 2004

51x5s images b&w stacked with MIRA AP and levels in Astroart (Log. scaled).

vis. 6.2 - >k stars - 26E9 years old - distance 33'900 ly - size 18', 180 ly effectively

M5 - NGC5904 - Globular cluster in Serpens

740KSC3 bw - LX90 0.47FR (mogg) ~fl 980mm - 15.May 2004

48x15s images b&w stacked with MIRA AP and levels in Astroart (Log. scaled).

vis. 5.6 - >k stars - 13E9 years old - distance 24'500 ly - size 23', 165 ly effectively
M10 - NGC6254 - Cluster in Ophiuchus

L3k - SC Amp off - Astele 133.5 - FR 0.63- 14.Jun.2002

20 sec exposure - total 10 pictures stacked with K3CCD and photo finish with Photoshop

vis. 6.6 - >k stars - ? years old - distance 14'300 ly - size 20', 83 ly effectively
M12 - NGC6218 - Cluster in Ophiuchus

L3k - SC Amp off - Astele 133.5 - FR 0.63- 14.Jun.2002

20 sec exposure - total 9 pictures  stacked with K3CCD and photo finish with Photoshop

vis. 6.6 - >k stars - ? years old - distance 16'000 ly - size 16', 75 ly effectively
M13 - NGC6205 - Cluster in Hercules

740KSC3 bw - LX90 0.47FR (mogg) ~fl 980mm - 28.May 2004

58x12s images b&w and 3x50x12s RGB stacked with MIRA AP and levels in Photoshop.
Cheapo RGB filters R25,G58,B80A + UVIR block on each.

vis. 5.7 - some 100k stars - 14E9 years old - distance 25'000 ly - size 23', 150 ly effectively
M13 - NGC6205 - Cluster in Hercules

740k - SC1.5 - LX90 FR 0.3 3.Sep.2003

21x20sec stacked with MIRA AP - FFT to remove pattern - Photoshop.

vis. 5.7 - some 100k stars - 14E9 years old - distance 25'000 ly - size 23', 150 ly effectively

M14 - NGC6402 - Cluster in Ophiuchus

L3k - SC Amp off - Astele 133.5 - FR 0.63- 7.Jul.2002

20 sec exposure - total 30 pictures  stacked with K3CCD and photo finish with Photoshop

vis. 7.7 - >k stars - ? Mio years old - distance 33'000 ly - size 11.7', 100 ly effectively

M15 NGC 7078

740KSC3 bw UVIRB - LX90 0.5FR (mogg) - 15.November 2004

22x15s images b&w stacked with MIRA AP and Photoshop.

ngc 7078: vis. 6.2 - >k stars- ? mio years old  - distance 33'600 ly - size 18'
M34 - NGC1039 - Open cluster in Perseus

740K SC1.5 135mm f2.8 - 15.Mar.2003

30x20 sec stacked with MIRA AP

vis. 5.5 - ~ 60 stars - 195 Mio years old - distance 1'400 ly - size 25.0', 14 ly effectively
M35 - NGC2168 & NGC2158 - Open cluster in Gemini

740KSC3 - Rubinar 300mm lens - 6.Jan.2005 

Color and Lum image combined in PS

vis. 5.3 - > 200 stars - 110 Mio years old - distance 2'800 ly - size 28.0', 24 ly effectively
M35 - NGC2168 & faint NGC2158 - Open cluster in Gemini

L3kSC1-Canon 135mm 2.8 lens - 02.Apr.2002 

20x15 sec 

vis. 5.3 - > 200 stars - 110 Mio years old - distance 2'800 ly - size 28.0', 24 ly effectively
M36 - NGC1960 - Open cluster in Auriga

L3kSC1- Canon 135mm 2.8 lens - 04.Apr.2002 

15x25 sec

vis. 6.3 - ~60 stars - 25Mio years old - distance 4'100 ly - size 12.0', 14 ly effectively
M37 - NGC2099 - Open cluster in Auriga

L3kSC1- Canon 135mm 2.8 lens - 04.Apr.2002 

15x25 sec

vis 6.2 - > 500 stars - 300 Mio years old - distance 4'700 ly - size 24.0', 25 ly effectively
M38 - NGC1912 & faint NGC1907 - Open cluster in Auriga

L3kSC1- Canon 135mm 2.8 lens - 04.Apr.2002 

15x25 sec 

vis. 7.4 - > 200 stars - 220 Mio years old - distance 4'200 ly - 21.0'

M44 NGC2632 

740KSC3 bw - CANON 85mm f1.8 - 25.April 2004

57x8s images b&w stacked with MIRA AP and levels in Astroart (Log. scaled).
Pleiades (M45 - NGC1432) - Open cluster in Taurus

740KSC3 - LX90 with FR3.3 - 4.Jan.2005

vis. 1.6 - ~ 500 stars - 78 Mio years old - distance 380 ly - size 110'
Pleiades (M45 - NGC1432) - Open cluster in Taurus

740KSC1.5 - CANON 85mm f/1.8 stopped at 2.8- 19.Nov.2003

110 images total 10,20,40 and 60 sec stacked with MIRA AP and Photoshop.
First time with contour and noise filter of the web cam switched off. This one with regular.

vis. 1.6 - ~ 500 stars - 78 Mio years old - distance 380 ly - size 110'
Pleiades (M45) - Open cluster in Taurus

740KSC1.5 - Canon 135mm f/2.8 5-60sec (blue mask) - 28.Oct.2002 

vis. 1.6 - ~ 500 stars - 78 Mio years old - distance 380 ly - size 110'

M48 NGC2548 

740KSC3 bw - CANON 85mm f1.8 - 25.April 2004

52x8s images b&w stacked with MIRA AP and levels in Astroart (Log. scaled).
M53 NGC5024  - Cluster in Coma Berenices

740KSC3 bw - LX90 0.47FR (mogg) ~fl 980mm - 16.April 2004

43x10s images b&w stacked with MIRA AP and levels in Astroart (Log. scaled).

vis 7.6 - >k stars - ? years old - distance 60'000 ly - size 14', 250 Mio ly effectively

M56 - NGC6779 - Cluster in Lyra

740K SC1.5 LX90 FR 0.63 - 12.Sep.2002

11x30 sec stacked with MIRA A

vis 8.2 - ? stars - 16E9 years old - distance 40'000 ly - size 7', 60 Mio ly effectively

M67 NGC26825 

740KSC3  - PF80-EDA~fl 480mm - 26.April 2004

41x20s images stacked with MIRA AP and levels in Astroart (Log. scaled).
M92 - NGC6341 - Cluster in Hercules

740KSC1.5 first light (yet uncooled)
Astele 133.5 - PF- 27.Jul. 2002 

30 sec exposure - total 5 pictures stacked with K3CCD and levels in Photoshop

vis 6.4 - ~ 300k stars - 16E9 years old - distance 26'700 ly - size 11.2', 85 Mio ly effectively
M103 - NGC581- Open cluster in Cassiopeia 

740KSC1.5 - LX90 FR 0.63 - 22.Sep.2003

30x10 sec stacked with MIRA AP and Photoshop.

vis. 7.4 - 25 stars - 25 mio years old  - distance 8'500 ly - size 6', 15 ly effectively
M107 - NGC6171 - Cluster in Ophiuchus

L3k - SC Amp off
Astele 133.5 - FR 0.63- 7.Jul. 2002

30 sec exposure - total 13 pictures  stacked with K3CCD and photo finish with Photoshop

vis 9.2 - ? stars - old ~2.3E9 yr - distance  19'600 ly - size 10', 60 Mio ly effectively