Prepare for solar eclipse with activities and community outreach, and anticipate many unique events that occur with a total solar eclipse. Activities include modeling the sun-moon-earth scale and alignment, sidewalk astronomy, kid art and crafts, Indigenous teachings, solar math, Styrofoam ball moon phases, and Gordon Telepun's Solar Eclipse Timer. Eclipse phenomena include limb darkening, shadow bands, Baily's Beads, Diamond Ring effect, totality, and corona. Emphasis is on the Purkinje effect and the strange appearance of colors, and shadows as totality approaches. Presented at Michiana Astronomical Society meeting on January 18, 2024.

1. Eclipse Blitz
Chuck Bueter
Michiana Astronomical Society
Thursday, January 18, 2024
Adapted from Gordon Telepun. Image: Fred Espenak

2. C1 C2 C3 C4
😎

3. https://www.nightwise.org/eclipse-2024

4. https://www.nightwise.org/eclipse-2024

5. Credit: Michael Zeiler, GreatAmericanEclipse.com

6. Flyover movie at https://www.greatamericaneclipse.com/

8. http://xjubier.free.fr/en/site_pages/solar_eclipses/TSE_2024_GoogleMapFull.html

9. Move cursor over an Event to update shadow.
http://xjubier.free.fr/en/site_pages/solar_eclipses/TSE_2024_GoogleMapFull.html

10. Change time zone display from UT to local time.
http://xjubier.free.fr/en/site_pages/solar_eclipses/TSE_2024_GoogleMapFull.html

11. Change time zone display from UT to local.
http://xjubier.free.fr/en/site_pages/solar_eclipses/TSE_2024_GoogleMapFull.html

12. Click Limb Correction (LC) for eclipse profile.
http://xjubier.free.fr/en/site_pages/solar_eclipses/TSE_2024_GoogleMapFull.html

13. http://xjubier.free.fr/en/site_pages/solar_eclipses/TSE_2024_GoogleMapFull.html

15. https://eclipse.aas.org/eye-safety

16. https://www.in.gov/dnr/places-to-go/events/2024-solar-eclipse/

17. Image: Jay Anderson
https://eclipsophile.com/2024tse/

18. https://www.eclipseovercleveland.com/
6-LakeErieApril62019

19. https://www.nightwise.org/eclipse-activities-2024
Eclipse Activities

20. Sidewalk Astronomy

21. Image: SDP/HMI
https://spaceweather.com/

22. https://eclipse2017.nasa.gov/static/img/k-12-formal-education/Science_&_Children_Mar2017_Preparing_for_the_Eclipse.pdf

23. https://sunearthday.nasa.gov/2007/materials/solar_pizza.pdf

24. https://www.jpl.nasa.gov/edu/teach/activity/moon-phases/

25. https://www.nightwise.org/single-post/solar-eclipse-activities

26. Moon
Earth

27. Moon
Earth
https://www.nightwise.org/single-post/eclipse-demo-moon-earth-model-on-telescope

29. https://www.nightwise.org/single-post/eclipse-demo-moon-earth-model-on-telescope

30. https://spaceplace.nasa.gov/sun-paper/en/

31. https://space.rice.edu/eclipse/pdf/cream_cookie_eclipse_timeline.pdf

32. https://eclipse2024.org/simvideos/table.html

33. https://www.timeanddate.com

34. https://eclipse2017.nasa.gov/decorate-eclipse-glasses

35. https://vimeo.com/230453732
Indigenous Eclipse Teachings

36. https://vimeo.com/230361737
Frog Swallows the Sun

37. https://www.nasa.gov/wp-content/uploads/2013/05/solar_math.pdf

38. Advocate for Solar
https://www.nightwise.org/single-post/seizing-a-sungazing-syzygy

39. https://spaceplace.nasa.gov/menu/sun/
NASA Space Place

40. Projection Techniques
Camera Obscura

42. https://www.nightwise.org/single-post/best-ways-to-project-the-sun

43. https://www.nightwise.org/single-post/best-ways-to-project-the-sun

44. https://www.nightwise.org/single-post/best-ways-to-project-the-sun

45. https://www.nasa.gov/wp-content/uploads/2013/05/solar_math.pdf

46. https://www.nightwise.org/platisphere
Platisphere

47. https://www.nightwise.org/single-post/solar-eclipse-activities#viewer-6ploo

48. https://www.nightwise.org/solargraphs

49. https://www.nightwise.org/solargraphs

50. https://www.nightwise.org/solargraphs

51. Image: Don Hladiuk

53. https://www.nightwise.org/sun-funnel

54. https://transit-finder.com/
YouTube: Space Station Zips Across a "Sun Funnel" During a Transit
https://youtu.be/qDoiLYhITHg?si=dUqv4L5XYCMiM3tw

56. Eclipse Day!

58. • Photography
• Approach of Umbra
• Insects
• Animals
• Eclipse Weather
• Venus
• Shadow Sharpness
• Purkinje Effect
C1 C2 C3 C4
• Shadow Bands
• Baily’s Beads
• Diamond Ring
• Chromosphere
• Totality
• Corona
• Jupiter & Venus
• SQM
• Awe!
The Blitz
Partial Eclipse Encore…

59. https://www.solareclipsetimer.com/
Solar Eclipse Timer

60. Solar Eclipse Timer
Book: $9.99 (digital)
$49.99 (print)
App: $1.99
Videos: free
https://www.solareclipsetimer.com/

61. Image: Gordon Telepun
Photography

62. Image: Gordon Telepun

63. https://youtu.be/_WHql-QKkrg?si=VXhUD5N-Gmjhlxak
Insects & Animals

64. Image: Gordon Telepun

65. Shadow Activity
https://www.nightwise.org/single-post/bizarre-shadows-during-solar-eclipse

66. Shadow Activity
https://www.nightwise.org/single-post/bizarre-shadows-during-solar-eclipse

67. Axis of Light
Disc of Light
https://www.nightwise.org/single-post/bizarre-shadows-during-solar-eclipse

68. In focus
https://www.nightwise.org/single-post/bizarre-shadows-during-solar-eclipse
Axis of Light

69. Out of focus Axis of Light
https://www.nightwise.org/single-post/bizarre-shadows-during-solar-eclipse

70. Point Source
of Light
In focus
https://www.nightwise.org/single-post/bizarre-shadows-during-solar-eclipse

71. https://www.nightwise.org/single-post/bizarre-shadows-during-solar-eclipse

73. Purkinje Effect
Or “Purkinje Shift”
Jan Evangelista Purkinje

74. Limb Darkening

75. Color Spectrum Change (2019)
Eclipse Sequence: Fred Espenak; Graph: Gordon Telepun
Limb Darkening

76. Image: Gordon Telepun

77. Bright Dark
Adapted from Gordon Telepun. Image: Fred Espenak

78. Bright Dark
Adapted from Gordon Telepun. Image: Fred Espenak

79. Photopic
(cones)
Adapted from Gordon Telepun. Image: Fred Espenak

80. Photopic
(cones)
Adapted from Gordon Telepun. Image: Fred Espenak

81. Photopic
(cones)
Scotopic
(rods)
Adapted from Gordon Telepun. Image: Fred Espenak

82. Photopic
(cones)
Scotopic
(rods)
Adapted from Gordon Telepun. Image: Fred Espenak

83. Photopic
(cones)
Scotopic
(rods)
Mesopic
Adapted from Gordon Telepun. Image: Fred Espenak

84. Mesopic
Adapted from Gordon Telepun. Image: Fred Espenak

85. Adapted from Gordon Telepun. Image: Fred Espenak

86. Adapted from Gordon Telepun. Image: Fred Espenak

87. “Purkinje Effect”
Or “Purkinje Shift”
Adapted from Gordon Telepun. Image: Fred Espenak

88. Adapted from Gordon Telepun. Image: Fred Espenak

89. Images: Gordon Telepun

90. Image: Gordon Telepun
https://youtu.be/NpisePffCd4?si=ohGtj9MBu_t1JA9Z

91. Image: Gordon Telepun

92. Shadow Bands

94. https://youtu.be/o-l6mFpahdQ?si=YkQ3M7BYfRBYaxHa
Shadow Bands

95. https://youtu.be/o-l6mFpahdQ?si=YkQ3M7BYfRBYaxHa
Shadow Bands

96. Baily’s Beads

97. Baily’s Beads

98. Baily’s Beads

99. Baily’s Beads

100. Francis Baily
Baily’s Beads

101. Halley described and correctly ascertained the cause of the effect[8] in his
"Observations of the late Total Eclipse of the Sun [...]" in the
Philosophical Transactions of the Royal Society:
About two Minutes before the Total Immersion, the remaining part of the
Sun was reduced to a very fine Horn, whose Extremeties seemed to lose
their Acuteness, and to become round like Stars ... which Appearance
could proceed from no other Cause but the Inequalities of the Moon's
Surface, there being some elevated parts thereof near the Moon's
Southern Pole, by whose Interposition part of that exceedingly fine
Filament of Light was intercepted.[8]
Baily’s Beads

102. Click Limb Correction (LC) for eclipse profile.
http://xjubier.free.fr/en/site_pages/solar_eclipses/TSE_2024_GoogleMapFull.html

104. http://xjubier.free.fr/en/site_pages/solar_eclipses/TSE_2024_GoogleMapFull.html

105. Image: Gordon Telepun

106. Baily’s Beads
Image: NASA/Aubrey Gemignani

107. Image: Rick Fienberg/ TravelQuest International/Wilderness Travel
Diamond Ring

108. Totality / Corona
Image: NASA/Aubrey Gemignani

109. Image: USPS
Image: US Postal Service

110. Image: Jay Ryan
https://www.eclipseovercleveland.com/
Planets & Horizon

111. https://www.nightwise.org/single-post/2017/08/27/measuring-darkness-during-totality
How dark does it get?

112. Image: NASA/Aubrey Gemignani

113. C1 C2 C3 C4
Image: Fred Espenak

116. If Cloudy…

118. Eclipse Blitz
Be bedazzled!

119. Eclipse Blitz
Adapted from Gordon Telepun. Image: Fred Espenak
bueter@nightwise.org
Chuck Bueter

120. Adapted from Gordon Telepun. Image: Fred Espenak