The open star cluster NGC225 within an interesting surrounding area in the constellation of Cassiopeia is assumed to be very young.

NGC189
NGC225
VdB4
LDN1300
LDN1291
LDN1301
LBN604


10/07/2023, 2.05am, 47° N, 3130 ft, wind calm, temperature 15°C, dewpoint 8°C, humidity 62%
lights 64x 130sec, filter: HEUIB-II (37 flats, 37 flatdarks, 50 darks)

10/08/2023, 1.20am, 47° N, 3130 ft, wind mostly calm, temperature 15°C, dewpoint 9°C, humidity 69%
lights 60x 130sec, filter: HEUIB-II (37 flats, 37 flatdarks, 50 darks)

10/09/2023, 10.25pm, 47° N, 3130 ft, wind moderate, temperature 15°C, dewpoint 7°C, humidity 60%
lights 65x 130sec, filter: HEUIB-II (37 flats, 37 flatdarks, 50 darks)

10/11/2023, 1.10am, 47° N, 3130 ft, wind calm, temperature 14°C, dewpoint 12°C, humidity 86%
lights 78x 130sec, filter: HEUIB-II (37 flats, 37 flatdarks, 50 darks)

10/12/2023, 1.05am, 47° N, 3130 ft, wind moderate, temperature 15°C, dewpoint 6°C, humidity 57%
lights 80x 130sec, filter: HEUIB-II (37 flats, 37 flatdarks, 50 darks)

11/08/2023, 11.10pm, 47° N, 3130 ft, wind calm, temperature 3°C, dewpoint -2°C, humidity 69%
lights 29x 130sec, filter: HEUIB-II (37 flats, 37 flatdarks, 50 darks)

11/23/2023, 6.50pm, 47° N, 3130 ft, wind moderate, temperature 2°C, dewpoint -3°C, humidity 68%
lights 7x 130sec, filter: HEUIB-II (37 flats, 37 flatdarks, 50 darks)

12/16/2023, 8.45pm, 47° N, 3130 ft, wind moderate, temperature 2°C, dewpoint -4°C, humidity 63%
lights 75x 130sec, filter: HEUIB-II (37 flats, 37 flatdarks, 50 darks)

12/17/2023, 8.35pm, 47° N, 3130 ft, wind calm, temperature 3°C, dewpoint 0°C, humidity 73%
lights 77x 130sec, filter: HEUIB-II (37 flats, 37 flatdarks, 50 darks)

integration: 19h 19min 10sec
sensor: SONY Exmor IMX183CLK-J/CQJ-J (ASI183MC)
lens: FRA400, f/3.9 at 280mm
mount: EQ6-R Pro
guidingsensor: AR0130CS (ASI120MM) & OAG
preprocess: Pleiades Astrophoto, PixInsight
postprocess: Pleiades Astrophoto, PixInsight