Tuesday, 12 July 2016

Tourmaline var.Elbaite on Albite var.Cleavelandite

Tourmaline var.Elbaite :  $Na (Li_{1.5} Al_{1.5} ) Al_6 Si_6 O_{18} (B O_3)_3 (O H)_4$
with impurity from Mn or Ti
Pink/Yellow crystal

Crystal: Trigonal

Albite var.Cleavelandite : $Na Al Si_3 O_8$

White/Pale Blue Matrix

Crystal: Triclinic Pinacoidal

Beryl var. Aquamarine on Albite Matrix

Beryl var. Aquamarine :  $Be_3 Al_2 (SiO_3)_6  +  Fe^{3+} Fe^{2+} ions$
Blue crystals
Crystal: Hexagonal

Albite : $Na Al Si_3 O_8$
pale yellow
Crystal: Triclinic Pinacoidal

Biotite : $K (Mg, Fe)_3 (Al Si_3 O_10) (F, OH)_2$
Black flakes
Crystal: Monoclinic 

Tuesday, 17 May 2016

QATAR-1 Light curve

Using 3 hours of data from the micro observatory in arizona, and 1 hour of total exposure data, I plotted the following partial transit light curve for the 1 planet of the system. Qatar 1-b is a planet 1.09 the mass of jupiter. Yesterday 15/5/16 it had a predicted transit.

The yellow region indicated the predicted transit. Notice  how the trend is falling, that is probably due to the fact that I had the data of half the transit.

Here is a 1 min sub of the star field, Qatar 1 is encircled.

and here is 48 minute stacked exposure of the star field I made using the images.