M 57

Ring Nebula


2012-06-18

Breil-sur-Roya, 06, F

T300/1200 + Ha 13nm + Atik 16IC

3 x 45min resize 1.05

1 2 3

deep : positive negative circle

2009 july 15

Breil-sur-Roya, 06, F

T300/1200 + IRcut

DBK 21 gain 900/1023 bal B30 R45

429 x 16s resize x1.2

2009 june 13

Breil-sur-Roya, 06, F

L80/600ED + SA 100 lines/mm + red 0.5 + DBK21

balance B30 R45 gain 1023/1023

28 x 32s

2008 june 02-03

Breil-sur-Roya, 06, F - 540m alt.

T 300/1200 x200 x240 x300 P2 S2 T2 (mVlonUMi= 6.8)

Greenish at 67x et 96x

Etoile centrale visible en VI2 de 200 à 300x

Text

2008 june 20-21 - Breil-sur-Roya, 06, F

T300/1200 + L filter + ToUcam Pro 2 SC1 raw

945 x 10s gain 100% Resize x1.2

Full Moon

Red layer

2007 sept 22 - Breil-sur-Roya, 06, F - Gibbous Moon

L70/700 + reduction 0.5

+ Toucam Pro 2 B&W S.C.1 + Red filter

59 x 180s gain 80%

Positif Negatif

T114/900 + Toucam Pro 2 B&W S.C.1

8 sept 2007 : 80 x 90s gain 100%

12 sept 2007 : 79 x 120s gain 90%

mV maxi (green) : 19.25

Positif Negatif

2006 oct 05

Canon 350D + Sigma 300mm

45 x 37s - f/8 - 800iso

Very large - full

Large

2006 june 21

Canon 350D + Sigma 300mm

4 x 100s (approx.) - f/7,1 et 8 - 400iso

2005 aug 30

T114/900 ToUcam Pro 2 modif. SC1

854 à 979 x 10s - 101darks

1 2 3

2005 may 05

Breil-sur-Roya, 06, F - 540m alt.

T 114/900 x72 x100

P1 S1 T0

Négatif

Anneau fluorescent à 100x