Crea sito
Telescope resolution javascript calculator
by Jumpjack - v. 1.0.0 - 26/04/2016
jumpjack at libero dot it


Target distance (km):
Target diameter (km):
--> Required telescope angular resolution: --° (-- arcsecs)
--> Required telescope diameter in mm: -- mm.
--> Angular aperture of target: --° (-- arcsecs)

Telescope diameter (mm):
--> Actual telescope angular resolution ("telescope power", "resolving power"): --° (-- arcsecs)
Mimimum diameter of visible object: -- km, -- m, -- mm

Telescope sensor width (pixel):
Telescope FOV (degrees):
Sensor resolution: --°/pixel (--arcsec/pixel)
Resolution at target: -- km/pixel (-- m/pixel)
Telescope FOV at target: -- km



Known data:
Earth-Moon resolution (400000 km, 200 mm telescope): 1114 m (1.1 km) (link)
Hubble-Moon resolution (400000 km, 2400 mm telescope): 93 m (link)
Hubble mirror aperture: 2400 mm
Hubble angular resolution: 0.043 arcsec
Hubble Field Of View: 162x162 arcsec (link)
Hubble sensor size: 2045x4096 (link)
Apollo Lunar Excursion Module (LEM) diameter leg-to-leg: 9.4m
Moon distance: 400000km
Moon diameter: 3476 km
Mars distance: 56-100 million km
Mars diameter: 6779 km
Planet Nine minimum distance: 200 AU (30'000'000'000 km, 30000000000 km)
Planet Nine minimum diameter: 2xEarth = 25000 km
Dawn probe telescope FOV: 5.5° (link)
Dawn probe sensor resolution: 1024 pixel (link)
Dawn probe orbits: RC3=13500km, Survey=2700km, HAMO=1450km, LAMO=375km

Calculated data:
Required Earth telescope diameter for 10m resolution on Moon: 22.4 m
Required Earth telescope diameter for 1m resolution on Moon: 224 m
Required Earth telescope diameter for 1cm resolution on Moon: 22 km
Hubble arcsec/pixel: 0.08 and 0.04

Formulas:
ResolutionArcSec = 116/Diam_mm
ResolutionArcSec = 4.51/Diam_in
TargetMinimumDiam_km = DistanceKm * Math.tan(ResolutionRad)
Rad = degree * 3.14/180
Degree = Rad * 180/3.14