Hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  The star 19Cep  ·  The star 20Cep  ·  The star 25Cep  ·  The star 26Cep  ·  The star ξCep
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sh2-140 in Cepheus, 


            Yuichi Kawamoto
sh2-140 in Cepheus
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sh2-140 in Cepheus

Technical card

Imaging telescopes or lenses: Borg 55FL  ·  BORG 67FL

Imaging cameras: QHYCCD QHY16200A Mono  ·  Canon KissX4

Mounts: CEM60

Guiding telescopes or lenses: Takahashi GT-40

Guiding cameras: QHYCCD QHY 5L-II mono

Focal reducers: BORG Reducer 0.8x DGQ55 [7880]  ·  Borg 7108

Software: Astroplace.net APT  ·  PixInsight 1.8


Dates:Sept. 3, 2016Nov. 3, 2016Nov. 5, 2016

IDAS HEUIBII: 128x140" ISO1600
IDAS HEUIBII: 50x300" -15C bin 1x1
IDAS HEUIBII: 10x60" -15C bin 1x1

Integration: 9.3 hours

Darks: ~10

Flats: ~16

Bias: ~38

Avg. Moon age: 3.52 days

Avg. Moon phase: 14.73%

Basic astrometry details

Astrometry.net job: 1337026

RA center: 22h 19' 29"

DEC center: +63° 30' 3"

Pixel scale: 3.632 arcsec/pixel

Orientation: 179.573 degrees

Field radius: 2.835 degrees

Resolution: 1137x1437

Locations: Mt. Fuji Tarobo Parking, Gotenba, Shizuoka Prefecture, Japan

Data source: Traveller


Very faint emission nebulae area except sh2-140 in the center.

Detailed acquisition information is as follows:

[Exposure Time]
L Images:
Sept. 3, 2016 and Nov. 3, 2016
300 secs x 50 frames
60 secs x 10 frame
total exposure 260 minutes.

RGB Images(nebula):
Sept. 3, 2016, Nov. 3, 2016 and Nov. 5, 2016
140 secs x 128 frames
total exposure 299 minutes

RGB Images(stars):
Nov. 5, 2016
R: 300 secs x 6 frames, G: 300 secs x 4 frames, B: 300 secs x 6 frames
total exposure 80 minutes

Total exposure time: 639 minutes

Equipment for L:
Borg 67FL + 7108 reducer, fl324mm F4.8
QHYCCD QHY16200A mono, -15 degrees Celsius, binx1
HEUIB-II + TS Optics L Filter

Equipment for RGB(nebula):
Borg 55FL + 7880 reducer, fl200mm F3.6
Cannon EOS Kiss X4 (IR modified), ISO1600

Equipment for RGB(stars):
Borg 67FL + 7108 reducer, fl324mm F4.8
QHYCCD QHY16200A mono, -15 degrees Celsius, binx2
HEUIB-II + TS Optics RGB Filter

Common Equipment:
Mount: iOptron CEM60
Guiding Telescope: Takahashi GT-40
Guiding Camera: QHYCCD QHY-5IIL

Capturing Software: APT Version 3.12
Guiding Software: PHD2 Version 2.61

Processing Software: PixInsight
Photoshop CC

L images for the LRGB were composition of images with cooled CCD Camera QHY16200A, while RGB images were from DSLR EOS Kiss X4.

20200229 recovery from data loss: the original full size image not available. To be updated after reproduction.



  • sh2-140 in Cepheus, 


            Yuichi Kawamoto
  • sh2-140 in Cepheus, 


            Yuichi Kawamoto
  • Final
    sh2-140 in Cepheus, 


            Yuichi Kawamoto

Sky plot

Sky plot


sh2-140 in Cepheus, 


            Yuichi Kawamoto