Scopes & Eye Pieces

Reminders:
* Start at 2.0 exit-pupil for DSO's
* Ultrablock ideal range is below 10x/inch of aperture

#+NAME: SCOPES
| Name    | Aperture | Length | F   | Max Zoom | Max Mag | Max 1.25" FoV | Max 2" FoV | Dawes Limit |
|---------+----------+--------+-----+----------+---------+---------------+------------+-------------|
| ST80    |       80 |    400 | f/5 |     160x |  +13.26 | 3.94°         | 6.59°      | 1.45"       |
| AT102ED |      102 |    714 | f/7 |     204x |  +13.78 | 2.21°         | 3.69°      | 1.14"       |
#+TBLFM: $4=($3/$2);f/%.f::$5=$2*2;%.fx::$6=(6.5+2.5*(log(($2*2)*$2/25.4)/log(10)));+%.2f
#+TBLFM: $7=57.3*(27.5/$3);%.2f°::$8=57.3*(46/$3);%.2f°::$9=115.824/$2;%.2f"

#+NAME: EYE PIECES
| Eye Piece |        |      |        | ST-80  |     |      |       | AT102ED |      |      |       |
| ......    | Barrel | aFoV | Length | ...... | Mag | tFoV | Pupil | ......  |  Mag | tFoV | Pupil |
|-----------+--------+------+--------+--------+-----+------+-------+---------+------+------+-------|
| AT UWA    | 2"     | 82.0 |     28 |        | 14x | 5.9° | 5.7mm |         |  26x | 3.2° | 3.9mm |
| AT UWA    | 1.25"  | 82.0 |     13 |        | 31x | 2.6° | 2.6mm |         |  55x | 1.5° | 1.9mm |
| SV135     | 1.25"  | 40.0 |     21 |        | 19x | 2.1° | 4.2mm |         |  34x | 1.2° | 3.0mm |
|           |        | 41.2 |     20 |        | 20x | 2.1° | 4.0mm |         |  36x | 1.1° | 2.8mm |
|           |        | 42.4 |     19 |        | 21x | 2.0° | 3.8mm |         |  38x | 1.1° | 2.7mm |
|           |        | 43.6 |     18 |        | 22x | 2.0° | 3.6mm |         |  40x | 1.1° | 2.5mm |
|           |        | 44.8 |     17 |        | 24x | 1.9° | 3.3mm |         |  42x | 1.1° | 2.4mm |
|           |        | 46.0 |     16 |        | 25x | 1.8° | 3.2mm |         |  45x | 1.0° | 2.3mm |
|           |        | 47.2 |     15 |        | 27x | 1.7° | 3.0mm |         |  48x | 1.0° | 2.1mm |
|           |        | 48.4 |     14 |        | 29x | 1.7° | 2.8mm |         |  51x | 0.9° | 2.0mm |
|           |        | 49.6 |     13 |        | 31x | 1.6° | 2.6mm |         |  55x | 0.9° | 1.9mm |
|           |        | 50.8 |     12 |        | 33x | 1.5° | 2.4mm |         |  60x | 0.8° | 1.7mm |
|           |        | 52.0 |     11 |        | 36x | 1.4° | 2.2mm |         |  65x | 0.8° | 1.6mm |
|           |        | 53.2 |     10 |        | 40x | 1.3° | 2.0mm |         |  71x | 0.7° | 1.4mm |
|           |        | 54.4 |      9 |        | 44x | 1.2° | 1.8mm |         |  79x | 0.7° | 1.3mm |
|           |        | 55.6 |      8 |        | 50x | 1.1° | 1.6mm |         |  89x | 0.6° | 1.1mm |
|           |        | 56.8 |      7 |        | 57x | 1.0° | 1.4mm |         | 102x | 0.6° | 1.0mm |
#+TBLFM: $6=remote(SCOPES, @2$3)/$4;%.fx::$7=$3/$6;%.1f°::$8=remote(SCOPES, @2$2)/$6;%.1fmm
#+TBLFM: $10=remote(SCOPES, @3$3)/$4;%.fx::$11=$3/$10;%.1f°::$12=remote(SCOPES, @3$2)/$10;%.1fmm

* 2022

** 2022-01 January
-- Response ended
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