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Archive scan 29 Aug 2026 · latest night 22 Aug 2026

Nebula Cassiopeia Complete

Heart Nebula

IC 1805

Integration

32.4 h

Light frames

4,212

Nights

11

Sessions

11

13 Sep 2025 to 28 Apr 2026

Heart Nebula (IC 1805) The finished picture → In the gallery as Heart Nebula

By scope

  • Seestar S30 Pro

    mosaic Complete
    Integration
    20.1 h
    Light frames
    2,741
    Nights
    8
    When
    12 Feb 2026 to 28 Apr 2026
    Exposures
    1,754 × 30 s, 983 × 20 s, 4 × 60 s
    Filters
    LP 2,741
  • Seestar S30

    mosaic Complete
    Integration
    12.3 h
    Light frames
    1,471
    Nights
    3
    When
    13 Sep 2025 to 12 Oct 2025
    Exposures
    1,471 × 30 s
    Filters
    LP 1,471
  • Seestar S50

    mosaic Complete

    Processed images only; no light frames from this scope are in the archive.

Field of view

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

S30 Pro 7.98° × 4.48° (mosaic) S30 4.26° × 2.40° (mosaic) S50 2.58° × 1.46° (mosaic)

Every night

Night Scope Lights Exposures Hours
13 Sep 2025 S30 661 661 × 30 s 5.51 h
11 Oct 2025 S30 602 602 × 30 s 5.02 h
12 Oct 2025 S30 208 208 × 30 s 1.73 h
12 Feb 2026 S30 Pro 55 46 × 30 s, 5 × 20 s, 4 × 60 s 0.48 h
28 Feb 2026 S30 Pro 27 27 × 30 s 0.23 h
2 Mar 2026 S30 Pro 682 657 × 20 s, 25 × 30 s 3.86 h
3 Mar 2026 S30 Pro 321 321 × 20 s 1.78 h
23 Apr 2026 S30 Pro 412 412 × 30 s 3.43 h
24 Apr 2026 S30 Pro 412 412 × 30 s 3.43 h
25 Apr 2026 S30 Pro 417 417 × 30 s 3.48 h
28 Apr 2026 S30 Pro 415 415 × 30 s 3.46 h