Penumbral Lunar Eclipse
Sunday, 31 December 2028
🌍 Not visible from India
A penumbral lunar eclipse is the subtlest kind: the Moon passes through Earth's outer shadow (penumbra) but never enters the dark umbra. The Moon's south or north limb gradually dims — an effect often imperceptible to the casual eye until maximum, when a clear deepening is visible on the most affected side. No blood-moon colouring occurs and no special equipment is needed. Photography with moderate zoom can show the light gradient across the lunar disc.
IST Contact Times
| Phase | IST Time | Description |
|---|---|---|
| P1 — Penumbral First Contact | 12:51 PM IST | Moon enters Earth's penumbra — subtle darkening begins |
| Greatest Eclipse (Mid) | 1:01 PM IST | Maximum eclipse magnitude reached |
| P4 — Penumbral Last Contact | 1:12 PM IST | Eclipse ends — Moon exits penumbra |
| 1:01 PM IST |
Eclipse magnitude 0 gives the fraction of the Moon's diameter immersed in Earth's deepest shadow at maximum. With magnitude below 1.0, only part of the Moon enters the umbra, or it grazes only the penumbra. Gamma 1.0049 (absolute value 1.005) gives the shadow axis distance from Earth's centre in Earth radii.
Grahan in Hindu Tradition
Chandra Grahan (चंद्र ग्रहण)
A lunar eclipse is called Chandra Grahan. The period of sutak (inauspicious period) begins 9 hours before the eclipse. During this time, eating is avoided and temples are closed. A purifying bath is taken after the eclipse ends.
Visible from India: No
Not visible from India (occurs during daytime). Traditional texts indicate that when the eclipse is not visible from a location, Sutak rules may not apply — consult your jyotishi.