Uncle Rod Uncle Rod's Astroblog: http://uncle-rods.blogspot.com/
1987 Meade LX3 2120 10" SCT on hypertuned EQ6 Pro Baader Self-Mod Canon XS_CLS Clip Filter DSI color_Orion ST80 Coulter 10" Compact Odessey Dob http://www.astrobin.com/users/shawnhar
B Cuddihee 1968 Jason Empire 60X700mm refractor 1977 Jason Empire 313 discoveror EQ Celestron Nexstar8SE "The Bumblebee", with Feathertouch Microfocuser, and Celestron CPC Heavy Duty Tripod. Stellarvue 50mm "Sparrowhawk" finder Denk bino's with Power x switch. Pair of Edmund 28 plossls. Pair of Edmund 28 RKE'S Pair of 24mm Brandons. Pair of Smart Astronomy 19 EF's. Pair of 18mm Celestron Ultimas
Quote:The sparks are igniters that will burn off any hydrogen gas that is vented so there is not an explosion when the main engines light off.
As I understand it, they do not iginite the engines. The only purpose is to keep the hydrogen that vents just before main engine ignition from forming an explosive cloud.
Rocket scientest.. They have to think of everything... LOL.
Quote:NASA has often used Celestrons and Questars aboard spacecraft, but not as tracking cameras, which I believe this is what you are referring to here.
Skywatcher BD 180mm f/15 Mak Intes M703 180mm f/10 Mak ED102 f/7 refractor Vixen LVW42, 22,13,8,5 and Vixen LV50
Deep Space Products
George You know you're getting on when the equipment you farmed with is showing up as suburban lawn ornaments.