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Archive scan 29 Aug 2026 · latest night 22 Aug 2026

Nebula Cepheus In processing

Iris Nebula

NGC 7023

Integration

47.9 h

Light frames

8,595

Nights

21

Sessions

21

28 Apr 2025 to 21 Aug 2026

Iris Nebula (NGC 7023) The finished picture → In the gallery as Iris Nebula

By scope

  • Seestar S30 Pro

    In processing
    Integration
    19.2 h
    Light frames
    2,573
    Nights
    5
    When
    30 Jan 2026 to 23 Apr 2026
    Exposures
    1,778 × 30 s, 795 × 20 s
    Filters
    IRCUT 2,573
  • Seestar S50

    Stacked
    Integration
    13.5 h
    Light frames
    4,861
    Nights
    7
    When
    28 Apr 2025 to 12 May 2025
    Exposures
    4,861 × 10 s
    Filters
    IRCUT 4,861
  • Seestar S30

    Stacked
    Integration
    8.6 h
    Light frames
    1,038
    Nights
    3
    When
    19 Aug 2026 to 21 Aug 2026
    Exposures
    1,038 × 30 s
    Filters
    IRCUT 1,038
  • Askar FRA400

    Stacked
    Integration
    6.6 h
    Light frames
    123
    Nights
    6
    When
    2 Jan 2026 to 10 Jan 2026
    Exposures
    54 × 120 s, 40 × 300 s, 28 × 180 s, 1 × 60 s
    Filters
    not recorded 123

Field of view

Each scope's frame drawn to scale, centred on the target. A mosaic covers twice the width and height.

S30 Pro 3.99° × 2.24° S30 2.13° × 1.20° FRA400 1.59° × 0.89° S50 1.29° × 0.73°

Every night

Night Scope Lights Exposures Hours
28 Apr 2025 S50 1,111 1,111 × 10 s 3.09 h
29 Apr 2025 S50 827 827 × 10 s 2.30 h
30 Apr 2025 S50 766 766 × 10 s 2.13 h
1 May 2025 S50 318 318 × 10 s 0.88 h
2 May 2025 S50 540 540 × 10 s 1.50 h
10 May 2025 S50 690 690 × 10 s 1.92 h
12 May 2025 S50 609 609 × 10 s 1.69 h
2 Jan 2026 FRA400 22 22 × 300 s 1.83 h
3 Jan 2026 FRA400 7 7 × 300 s 0.58 h
4 Jan 2026 FRA400 1 1 × 60 s 0.02 h
5 Jan 2026 FRA400 11 11 × 180 s 0.55 h
7 Jan 2026 FRA400 17 17 × 180 s 0.85 h
10 Jan 2026 FRA400 65 54 × 120 s, 11 × 300 s 2.72 h
30 Jan 2026 S30 Pro 470 470 × 30 s 3.92 h
20 Mar 2026 S30 Pro 509 507 × 30 s, 2 × 20 s 4.24 h
21 Mar 2026 S30 Pro 701 701 × 30 s 5.84 h
28 Mar 2026 S30 Pro 850 793 × 20 s, 57 × 30 s 4.88 h
23 Apr 2026 S30 Pro 43 43 × 30 s 0.36 h
19 Aug 2026 S30 341 341 × 30 s 2.84 h
20 Aug 2026 S30 346 346 × 30 s 2.88 h
21 Aug 2026 S30 351 351 × 30 s 2.93 h