Showing posts with label astronomy. Show all posts
Showing posts with label astronomy. Show all posts

14 March 2016

रोहिणी है गुस्से से लाल

रोहिणी है गुस्से से लाल
बोली चाँद से
तुम यहाँ हर महीने तो आते हो
लेकिन मुझसे कभी मिल नहीं पाते हो 
यु ही आगे बढ़ जाते हो
चाँद ने कहा
मुझे तो सब से मिलना है
सिर्फ तुम ही नहीं हो आकाश में ।
फिर ऐसा मौका भी आया
जब चाँद रोहिणी से मिलने आया
चाँद जब मिला तो
घंटे भर रोहिणी के साथ रह पाया
न जाने उसका गुस्सा कम हुआ या नहीं
पर तब उसका चेहरा लाल तो न दिख पाया।
लेकिन चाँद फिर चल दिया अपने रस्ते
और अब फिर से
रोहिणी है गुस्से से लाल ।
Context: Occultation of Aldebaran by Moon, 14 March 2016

21 September 2012

Journey of Indian Sky Map


https://play.google.com/store/apps/details?id=com.alokm.android.stardroid

Today I am happy to release Indian Sky Map, a fork of Google Sky Map. I have added an extra layer of Nakshatras. And changed the name of objects from western to Indian, but only those that I could find.

Also added the positions of Rahu and ketu. Had to search a bit to find it. Couldnt get a readymade solution though. I found a tutorial for calculating the Ecliptic longitude and latitude though. And that was enough, as I reused and tweaked the lunar computation to transform the nodal ecliptic coordinates to RA/Dec.
Nakshatra mapping was a laborious task. There seem to be no consensus on what are the exact nakshatras. To incorporate groups of star as nakshatras, I had to implement a circular region of variable size to accomodate different sizes. And then manually picked the RA/Dec center and radius for each one of them.
There is still a lot of scope for updating the names from western to Indian. But I am not sure how authentic the sources would be.
There is a huge bug though on the Sky Map app. If it is being launched by a search intent and the app has not already started, then the pointing arrow shows the wrong direction. I tried to implement the solution to this given by a guy on the forums. But still results were not satisfactory. Finally I had to implement a workaround to show the search box again if the app is being started through the search intent.

Hoping that this app does well.