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frame #9 (8:43pm PST 1/20) Click for HI-RES image |
mid-totality, 1 min exposure (Astia 100) NOTE: the arrow denotes the moon's path (approx. west -> east), thru the umbra. |
frame #3 (8:32pm PST 1/20) Click for HI-RES image |
EARLY totality, post 2nd contact, 30 sec exposure (Astia 100) The brightness variations is due to the following: the sections of the lunar-limb closer to the umbral-edge are BRIGHTER, the sections deeper into the umbra are DARKER. Since the moon's path thru the umbra is CLOSER to one edge of the umbra, the moon will brighter on that side (denoted by "Z" in photo). There is also a more SUBTLE brightness variation, just AFTER 2nd contact. The lunar-limb closest to the "leading" umbral-edge (the point of 2nd contact) is BRIGHTER...see the TOP ARC in the photo. The BOTTOM ARC denotes the lunar-limb which is deeper into the umbra, and is thus DARKER. NOTE: the arrow denotes the moon's path (approx. West -> East), thru the umbra. The arcs denote the "contact points". Z denotes the point along lunar-limb, of maximum brightntess. |
frame #6 (8:42pm PST 1/20) Click for HI-RES image |
mid-totality, 30sec min exposure (Astia 100) NOTE: the arrow denotes the moon's path (approx. west -> east), thru the umbra. The brightness variations is due to the following: the sections of the lunar-limb closer to the umbral-edge are BRIGHTER, the sections deeper into the umbra are DARKER. Since the moon's path thru the umbra is CLOSER to one edge of the umbra, the moon will brighter on that side (denoted by "Z" in photo). Compare with above photo (just after 2nd contact). Here, at mid-totality, the "arcs" have the SAME brightness (since they are equidistant from their respective uumbral-edges.) NOTE: the arrow denotes the moon's path (approx. West -> East), thru the umbra. The arcs denote the "contact points". Z denotes the point along lunar-limb, of maximum brightntess. |
frame #12 (9:06pm PST 1/20) Click for HI-RES image |
LATE totality (pre 3rd contact), 30 sec exposure (Astia 100) The brightness variations is due to the following: the sections of the lunar-limb closer to the umbral-edge are BRIGHTER, the sections deeper into the umbra are DARKER. Since the moon's path thru the umbra is CLOSER to one edge of the umbra, the moon will brighter on that side (denoted by "Z" in photo). There is also a more SUBTLE brightness variation, just BEFORE 3rd contact. The lunar-limb that is APPROACHING the "trailing" umbral-edge (the point of 3rd contact) is VERY BRIGHT..see the BOTTOM ARC in the photo..partial phase is beginning. The TOP ARC denotes the lunar-limb which is still in the umbra, under eclipse. Compare, to above 3 photos: mid-totality, post 2nd contact. NOTE: the arrow denotes the moon's path (approx. West -> East), thru the umbra. The arcs denote the "contact points". Z denotes the point along lunar-limb, of maximum brightntess. |
frame #6 (8:42pm PST 1/20) Click for HI-RES image |
mid-totality, CLOSEUP. 30sec min exposure (Astia 100) Blowup of the above totality shot, frame #6. Closeup of the crater Tycho. |
frame #16 (9:24pm PST 1/20) Click for HI-RES image |
AFTER totality (post 3rd contact), 15 sec exposure (Astia 100) The brightness variations is due to the following: the sections of the lunar-limb closer to the umbral-edge are BRIGHTER, the sections deeper into the umbra are DARKER. Since the moon's path thru the umbra is CLOSER to one edge of the umbra, the moon will brighter on that side (denoted by "Z" in photo). The lunar-limb closest that is EMERGING out of the "trailing" umbral-edge (the point of 3rd contact) is BRIGHTER...see the BOTTOM ARC in the photo. The TOPC ARC denotes the lunar-limb which is deeper into the umbra, and is thus DARKER. Compare, to above 2 photos: early-totality, mid-totality, late-totality. |
frame #16 (9:24pm PST 1/20) Click for HI-RES image |
blowup of above image. It shows the subtle color variation at the umbral-edge. Note the steel-blue hue. |
frame #21 (9:24pm PST 1/20) Click for HI-RES image |
Partial phase (post 3rd contact), 8 sec exposure (Astia 100) NOTE: the arrow denotes the moon's path (approx. West -> East), thru the umbra. The arcs denote the "contact points". Z denotes the point along lunar-limb, of maximum brightntess. |
frame #21 (9:24pm PST 1/20) Click for HI-RES image |
blowup of above image. It shows a star near the lunar-limb. |
frame #28 (9:42pm PST 1/20) Click for HI-RES image |
Partial phase (post 3rd contact), 8 sec exposure (Astia 100) NOTE: the arrow denotes the moon's path (approx. West -> East), thru the umbra. The arcs denote the "contact points". Z denotes the point along lunar-limb, of maximum brightntess. |