Local Mean Sidereal Time - Alignmaster

[beamer3.6m]

I need to input the LMST into Alignmaster but I am confused.

My site location according to Heavens Above is:

Lat: 53.8181

Long: -0.9193

It appears that the Long is the most important aspect of this for determining LMST and I used an online converter to get this into degrees as follows:

Lat: 53° 49' 5.16"

Long: 0° 55' 9.48"

I then used a LMST calculator online but I am confused as using more than 1 of these resulted in more than 1 result. How do I get this information simply?

[beamer3.6m]

I have just found this section of Heavens Above relevant to now:

Is the Local Sidereal time the one I use for Alignmaster?

Local time: 10 September 2014 13:54:24

UTC: 10 September 2014 12:54:24

Local time offset from UTC: + 1:00

Day of year (1st Jan = 1):

253

Week of year: 37 Julian day number:

2,456,911.03778

Modified Julian day number:

56,910.53778

TAI-UTC (seconds): 35     

Local sidereal time:

12:08:38

Greenwich sidereal time:

12:12:19

Time in two-line element format: