She is the goddess of the nakṣatra.
There are two nakṣatra maṇḍala
- The mundane saṅsāra nakṣatra maṇḍala of 27 mansions each measuring 13°20’
- The spiritual saṅnyāsa nakṣatra maṇḍala of 28 mansions each measuring the same 13°20’ except for three stars.
- The 21st nakṣatra Uttara āsāḍha in Sagittarius gives its last pada 3°20’ and becomes 10°0’ and
- the previously 22nd nakṣatra Śrāvaṇa gives away one-fifteenth part or 0°53’20” at the beginning.
- These parts together form the light of the new 22nd nakṣatra अभिजित (Abhijit) which is 4°13’20” [3°20’ + 0°53’20”]
- The nakṣatra are renumbered with Abhijit as 22nd ★
- Śrāvaṇa as 22 23★
- Dhaniṣṭhā as 23 24★
- Śatabhiṣāj as 24 25★
- Pūrva Bhadrapada 25 26★
- Uttara Bhadrapada 26 27★
- Revatī as 27 28★
Agni Deva
The nakṣatra maṇḍala is very peculiar. During śukla pakṣa and kṛṣṇa pakṣa the nakṣatra tattva shifts.
The nakṣatra tattva of the 27 nakṣatra maṇḍala during śukla pakṣa ~
- Pṛthvī tattva: Five nakṣatra» 1 Aśvinī, 2 Bharani, 3 Kṛttikā, 4 Rohiṇī, 5 Mṛgāśira
- Jala tattva: Six nakṣatra» 6 Ārdrā, 7 Punarvasu, 8 Puṣya, 9 Aśleṣā, 10 Magha, 11 Pūrva Phālguṇī
- Agni tattva: Five nakṣatra» 12 Uttara Phālguṇī, 13 Hastā, 14 Chitrā, 15 Svātī, 16 Viśākhā
- Vāyu tattva: Six nakṣatra» 17 Anurādhā, 18 Jyeṣṭhā, 19 Mūla, 20 Pūrva Āsāḍha, 21 Uttara Āsāḍha, 22 Śrāvaṇa
- Ākāśa tattva: Five nakṣatra» 23 Dhaniṣṭhā, 24 Śatabhiṣāj, 25 Pūrva Bhadrapada, 26 Uttara Bhadrapada, 27 Revatī
The nakṣatra tattva of the 27 nakṣatra maṇḍala during kṛṣṇa pakṣa ~
- Ākāśa tattva: Five nakṣatra» 1 Aśvinī, 2 Bharani, 3 Kṛttikā, 4 Rohiṇī, 5 Mṛgāśira
- Vāyu tattva: Six nakṣatra» 6 Ārdrā, 7 Punarvasu, 8 Puṣya, 9 Aśleṣā, 10 Magha, 11 Pūrva Phālguṇī
- Agni tattva: Five nakṣatra» 12 Uttara Phālguṇī, 13 Hastā, 14 Chitrā, 15 Svātī, 16 Viśākhā
- Jala tattva: Six nakṣatra» 17 Anurādhā, 18 Jyeṣṭhā, 19 Mūla, 20 Pūrva Āsāḍha, 21 Uttara Āsāḍha, 22 Śrāvaṇa
- Pṛthvī tattva: Five nakṣatra» 23 Dhaniṣṭhā, 24 Śatabhiṣāj, 25 Pūrva Bhadrapada, 26 Uttara Bhadrapada, 27 Revatī
Agni tattva is fixed in the five nakṣatra and does not change in either pakṣa » 12 Uttara Phālguṇī, 13 Hastā, 14 Chitrā, 15 Svātī, 16 Viśākhā. Of these five nakṣatra Chitrā is right in the center of the group and marks the position of Subhadrā
Janma Nāma
The Harivaṁśa purāṇa mentions Chitra (चित्रा) as the janma nāma i.e. birth name of Subhadrā. It means bright, clear, excellent and colourful like a picture. This nakṣatra holds the horoscope picture of all souls and the karmic records.
Subhadrā devī is the ruler of the nakṣatra maṇḍala and the nakṣatra jātaka of all creatures is under Her control. By this She grants longevity as the prāṇa vāyu is associated with the janma nakṣatra.