# Arc Minute/Second Guide East Calculation of Arc-Second Size of Objects Formula and Table

```Size(in ArcSeconds) = 206,283 * Diameter(in miles) of Object
-------------------------------
Distance(in miles) of Object from Earth

Diameter Distance(Miles)  ArcSec  Arc Min
Moon from Earth               2,156        239,000    1,861       31
Earth from Moon               7,927         239000    6,842      114
Sun from Earth              860,000     93,000,000    1,908       32
Saturn from Sun              74,200    886,000,000    17.28
Uranus from Sun              32,400  1,783,000,000     3.75
Px from earth at MIN         31,708     14,000,000      467        8
Px Swirl = 4 x Px           126,832     14,000,000    1,869       31
Px Swirl Dec 2002           126,832 17,000,000,000     1.54
Px Moon #1 ***               34,590 17,000,000,000   0.4197
Px Moon #2 ***               23,060 17,000,000,000   0.2798
*** from  Dec 13 & 14th imaging of Px by Naji

How formula was developed:
diam moon               =      2156 miles
dist of moon from earth =   239,000 miles
size of moon from earth =        31 arc min
arc sec increases proportion to diam of object
arc sec inversely proportion to dist of obj from earth

Size = 31 arcsec * 60 arcsec/arcmin * moon dist / moon diam  * input
= 206,283 * diam obj / dist of obj
where input = diam object / distance of object from earth

J```