Throne
The throne is of the simple, engraved type
. The throne is attached with a integrated base. The
throne is
an extension of the
limb. It is
decorated with foliate engraving.
Ring
The ring is of the simple, round cross-section
type (i.e. simple plain ring made from a round rod or piece
of metal). It has slight indentation on exterior surface,
perhaps from the bending it into a circle
Shackle
Shackle of the omega type (i.e. Ω-shaped
shackle). This
shackle is
simply a band of metal that has been bent into an inverted U
shape. It is decorated with engraved lines resembling the
petals of a flower.
Mater
The mater and limb are of one-piece
construction. The limb is an extension of the single plate
that forms the body of the instrument. Scales on the
limb:
| Range & Units |
Numbered |
Geometry |
Location |
| Equal
hours |
1 - 12 Times of day |
Every 1 hours |
Circular, concentric |
outer |
| Degree |
0 - 90 Degrees |
Every 5 degrees |
Circular, concentric |
outer2 |
Womb
The
womb is the
only
plate for
this astrolabe. Judging by the location of the equator, the
latitude is closer to 49°. The vestige of a large shadow
square is visible in the lower half.
The womb is inscribed:
| Translation |
Notes |
Type |
| 48 |
48° |
|
Latitude |
| Orient |
East |
|
Direction |
| Occident |
West |
|
Direction |
Almucantars
| Divisions |
Labelled |
Style |
| Divided every 2° from 0° to 90° |
Labelled every 2° with (Modern)
numerals |
Plain line. |
Azimuths
| Divisions |
Labelled |
Style |
| Divided every 2° |
Labelled every 5° with (Modern)
numerals |
Plain line. |
Circles
| Type |
Labelled |
Style |
Notes |
| Equator |
Æquinoctialis (Latin in Italic script) |
Plain line. |
|
| Tropic of Cancer |
Tropicus Cancri (Latin in Italic
script) |
Plain line. |
|
| Tropic of Capricorn |
Tropicus Capricorni (Latin in Italic
script) |
Plain line. |
|
Lines
| Type |
Labelled |
Description |
| Meridian line |
|
|
| Horizon rectus |
Horizon Rectus (Latin in Italic script) |
|
| Crepuscule |
Lina Aurore Sive Crepuscullinæ (Latin in
Italic script) |
|
| Horizon obliquus |
Horizon Obliquus (Latin in Italic
script) |
|
| Unequal hours |
Numbered (Numbers in Numbers, stamped script) |
(Modern), Plain line style. |
| Horoscopic (great) houses |
Numbered (Numbers in Numbers, stamped script) |
(Modern), Hatched line style. |
