Komet C/2020 F3 (NEOWISE)

 
Trotz der Schliessung der Sternwarte Herne konnten einige Vereinsmitglieder diesen hellen Kometen von verschiedenen Orten aus beobachten und fotografieren:
date (yy/mm/dd)
time (UT)
exp. time (min/sec)
camera / telescope
film / CCD
filter
image size
Processing

50% crop

Ort: Herkenrath
© Bernd Klemt, Sternwarte Herne
2020/08/07
20:47:41
16 x 30 sec

Moravian
G2 8300 Mk II

12" -Ritchey-Crétien f/8 with focal reducer @ f/5.4

Moravian G2-8300 Mk II

no filter

32.2' x 24.3'

south is up,
east to the right

Mira Pro:
dark, flat

Astrometrica:
stack (sum) on comet

PS:
crop, reduce to 50%, contrast stretch

50% crop

Ort: Herkenrath
© Bernd Klemt, Sternwarte Herne
2020/08/05
20:36:54
16 x 30 sec

Moravian
G2 8300 Mk II

12" - Ritchey-Crétien f/8 with focal reducer @ f/5.4

Moravian G2-8300 Mk II

Astrodon Johnson/Cousins Rc
28.9' x 16.4'

south is up,
east to the right

Mira Pro:
dark, flat

Astrometrica:
stack (sum) on comet

PS:
crop, reduce to 50%, contrast stretch

false color LVRI ==> LBGR composit

1080 crop
full resolution

Ort: Herkenrath
© Bernd Klemt, Sternwarte Herne
2020/07/31
21:06:22 - 21:29:25
V 6 x 30 sec
R 6 x 30 sec
I 6 x 30 sec
L 16 x 30 sec

Moravian
G2 8300 Mk II

12" - Ritchey-Crétien f/8 with focal reducer @ f/5.4

Moravian G2-8300 Mk II

Astrodon Johnson/Cousins V, Rc, Ic, none
31.8' x 26.4'

south is up,
east to the right

Mira Pro:
dark, flat, LRGB merge

Astrometrica:
stack (sum) on comet for each color set

PS:
crop, contrast stretch

Ort: Bochum
© Michael Brüning, Sternwarte Herne

2020/07/30
23:39
8 x 30 sec
Sony A7s + Canon 400 mm f/5.6 + Kenko 2x-Konverter
ISO 1250
CMOS
    

Ort: Bochum
© Mathias Brüning, Sternwarte Herne
2020/07/20
22:58
Lumix G9 @
f = 56 mm
CMOS

Ort: Bochum
© Michael Brüning, Sternwarte Herne
2020/07/20
22:13
Sony A7s + Canon 400 mm f/5.6
CMOS

Ort: Longinusturm, Dülmen
© André Pooschke, Sternwarte Herne
2020/07/20
21:45 - 22:15
50 x 20 sec
Canon EOS 6D + Canon EF200 mm @f/4
ISO 2000

CMOS

 

stack

Ort: Westhafen Herne/Wanne
© Jens Ackermann, Sternwarte Herne
2020/07/20
21:34
4 sec
Sony A7ii + Samyang 35mm f/2,8 ISO500

CMOS

 

single frame
HDR modus

Ort: Gelsenkirchen
© Christian Lampret, Sternwarte Herne
Nachführung mit Skywatcher
Star Adventurer

image with full resolution
2020/07/14
70 x 30 sec
Canon EOS 1200D + Canon EF200 mm @f/4
ISO 400

CMOS

Stacking mit Fitswork,
PixInsight und NeatImage v8

(Dark, Flat, Entrauscht, Gradientenentfernung, Stretching, Sättigung)

Ort: Herkenrath
© Bernd Klemt, Sternwarte Herne
Schweiflänge ca. 6.5°

image with full resolution

Video (with PhotoLapse, 3 fps, 32 Mb)
2020/07/13
21:54 - 22:00
31 x 2.5 sec
Canon EOS 6D + Sigma EX 105mm 1:2.8
f=105 mm @ f/4.0
ISO 3200

CMOS

19.7° x 13.1°

insert EXIF data with IrfanView

stack, flatfield,saved as 16bit TIFF with DeepSkyStacker

scaling
contrast stretch
convert to 8bit JPEG

Ort: Herkenrath
© Bernd Klemt, Sternwarte Herne

Video (with PhotoLapse, 5 fps, 36 Mb)
2020/07/13
21:43 - 21:49
32 x 2.5 sec
Canon EOS 6D + Sigma APO 170-500 mm 1:5.0-6.3
f=170 mm @ f/5.0
ISO 6400

CMOS

12.1° x 8.1°

insert EXIF data with IrfanView

stack, flatfield,saved as 16bit TIFF with DeepSkyStacker

scaling
contrast stretch
convert to 8bit JPEG

Ort: Halde Hoheward
© Jens Ackermann, Sternwarte Herne
Nachführung mit HEQ5-Montierung

2020/07/12
23:06
7 x 1 sec
Sony A7ii + Skywatcher Equinox 66ED APO
+ 0,8x Flattener
ISO 1600

CMOS

 

Starry Sky Stacker

Photoshop

Ort: Herkenrath
© Bernd Klemt, Sternwarte Herne

Video (with PhotoLapse, 5 fps, 200 Mb)
2020/07/12
21:13 - 21:25
62 x 2 sec
Canon EOS 6D + Sigma EX 105mm 1:2.8
f=105 mm @ f/4.0
ISO 800

CMOS

19.7° x 13.1°

insert EXIF data with IrfanView

stack, flatfield with DeepSkyStacker

scaling
contrast stretch

full resolution

Ort: Kobach
© Christian Loenhoff, Sternwarte Herne
2020/07/11
20:50
6 sec
Canon
EOS 77D
+ Canon EF
50mm f/1.8 II
@ f/3.2
CMOS
25.6° x 17.1°
PS:
increase bright pixels for thumb image
scaling

Ort: Herkenrath
© Bernd Klemt, Sternwarte Herne

Video (with PhotoLapse, 5 fps, 107 Mb)
2020/07/10
21:27:04
2 sec
Canon EOS 6D + Sigma EX 105mm 1:2.8
f=105 mm @ f/4.0
ISO 1600

CMOS

19.7° x 13.1°

insert EXIF data with IrfanView
scaling
contrast stretch

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Erstellt am 16.07.2020 durch Bernd Klemt

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letzte Änderung: 18.08.20 BK