Vaonis Vespera Pro: how long to image deep-sky targets

The square-sensor Vespera with 2 µm pixels. Higher resolution than the II, and correspondingly slower per pixel: expect around double the time for the same per-pixel SNR. Run-out in 2026 and replaced by the Vespera Pro 2.

SpecValue
Aperture50 mm
Focal length250 mm (f/5.0)
SensorSony IMX676, 3536 × 3536, 2 µm pixels
Pixel scale1.65″ per pixel
Field of view1.62° × 1.62° (97′ × 97′)
Sub exposures10 s, 20 s, 30 s (default 10 s)
FiltersOptional clip-on Vaonis filters: dual-band, light-pollution (CLS) and solar. What the names mean.
In the calculator“No filter” is the No filter position; “dual-band” is the clip-on dual-band (Dual Band filter).
Read noise used0.8 e⁻
Where to buy the Vespera ProAmazon UKAmazon USAffiliate links: As an Amazon Associate I earn from qualifying purchases, at no cost to you.

Weighing it against the others? The buying guide puts every scope on one table.

Popular targets

Total integration for a solid image, 10 s subs, recommended filter.
TargetBortle 4Bortle 6Bortle 8
Andromeda GalaxyGalaxy1 h 41 min604 subs3 h 16 min1,176 subs8 h 45 min3,150 subs
Orion NebulaEmission nebula21 min129 subs38 min227 subs1 h 35 min569 subs
PleiadesReflection nebula3 h 02 min1,094 subs6 h 03 min2,177 subs16 h5,920 subs
Whirlpool GalaxyGalaxy1 h 09 min417 subs2 h 11 min785 subs5 h 42 min2,054 subs
Bode's GalaxyGalaxy1 h 14 min446 subs2 h 23 min856 subs6 h 18 min2,271 subs
Pinwheel GalaxyGalaxy5 h 07 min1,845 subs10 h3,727 subs28 h10,230 subs
Hercules ClusterGlobular cluster10 min60 subs16 min98 subs38 min230 subs
Dumbbell NebulaPlanetary nebula34 min206 subs1 h361 subs2 h 29 min893 subs
Ring NebulaPlanetary nebula11 min68 subs17 min103 subs37 min225 subs
Lagoon NebulaEmission nebula34 min206 subs1 h 03 min378 subs2 h 42 min971 subs
Eagle NebulaEmission nebula1 h 49 min655 subs3 h 33 min1,278 subs9 h 32 min3,431 subs
Omega NebulaEmission nebula40 min240 subs1 h 12 min434 subs3 h 04 min1,107 subs
Trifid NebulaEmission nebula1 h 18 min467 subs2 h 30 min899 subs6 h 38 min2,388 subs
Triangulum GalaxyGalaxy3 h 02 min1,094 subs6 h 03 min2,177 subs16 h5,920 subs
North America NebulaEmission nebula2 h 33 min921 subs5 h 04 min1,822 subs14 h4,935 subs
Western Veil NebulaSupernova remnant2 h 47 min1,004 subs5 h 32 min1,992 subs15 h5,405 subs
Eastern Veil NebulaSupernova remnant2 h 21 min846 subs4 h 38 min1,667 subs13 h4,506 subs
Elephant's Trunk NebulaEmission nebula4 h 18 min1,549 subs8 h 39 min3,114 subs24 h8,524 subs
Iris NebulaReflection nebula2 h 09 min776 subs4 h 14 min1,525 subs11 h4,114 subs
Pacman NebulaEmission nebula3 h 02 min1,094 subs6 h 03 min2,177 subs16 h5,920 subs
Heart NebulaEmission nebula5 h 07 min1,845 subs10 h3,727 subs28 h10,230 subs
Rosette NebulaEmission nebula2 h 33 min921 subs5 h 04 min1,822 subs14 h4,935 subs
Horsehead NebulaEmission nebula3 h 37 min1,302 subs7 h 14 min2,604 subs20 h7,103 subs
Flame NebulaEmission nebula56 min335 subs1 h 46 min634 subs4 h 37 min1,664 subs
California NebulaEmission nebula3 h 37 min1,302 subs7 h 14 min2,604 subs20 h7,103 subs
Helix NebulaPlanetary nebula3 h 37 min1,302 subs7 h 14 min2,604 subs20 h7,103 subs
Double ClusterOpen cluster5 min30 subs6 min34 subs12 min72 subs
NGC 891Galaxy3 h 06 min1,114 subs6 h 08 min2,210 subs17 h5,996 subs
Sombrero GalaxyGalaxy57 min343 subs1 h 45 min629 subs4 h 30 min1,618 subs
Sunflower GalaxyGalaxy1 h 54 min684 subs3 h 41 min1,327 subs9 h 52 min3,551 subs

All 170 targets have a page for the Vespera Pro.

Every target for the Vespera Pro

Supernova remnants

Globular clusters

Open clusters

Emission nebulas

Star clouds

Planetary nebulas

Galaxies

Reflection nebulas

Getting the most from the Vespera Pro

10 s subs by default; Expert Mode manual targets allow 1 to 30 s. Alt-azimuth only, no EQ mode. Optional clip-on Vaonis filters: dual-band, light-pollution (CLS) and solar.

Longer subs matter most under dark skies, where read noise rather than skyglow sets the floor. From a city the difference between 10 s and 30 s subs is small; from a rural site it can halve the total time, especially with a dual-band filter in place.

Stack across nights. Every smart scope app can continue a stack or you can combine the saved frames on a computer; the figures here are totals, not single-session limits.

Compare the Vespera Pro

Useful gear

What actually fits this scope, checked against the maker's own pages: power, EQ mode, dew and carry.

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All Vespera Pro accessories, and what to take on a cold night →